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Finding the Fourth Proportional to 67,247,999.70, 100,871,999.55 and 33,235,775.70

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Solution

The fourth proportional to 67,247,999.70, 100,871,999.55 and 33,235,775.70 is: 49,853,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,247,999.70 : 100,871,999.55 = 33,235,775.70 : x
  2. Step 2: Convert to fraction form
    67,247,999.70/100,871,999.55 = 33,235,775.70/x
  3. Step 3: Cross multiply
    67,247,999.70x = 100,871,999.55 × 33,235,775.70
  4. Step 4: Simplify right side
    67,247,999.70x = 3,352,559,151,454,301
  5. Step 5: Solve for x
    x = 3,352,559,151,454,301/67,247,999.70
  6. Step 6: Final answer
    x = 49,853,663.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.