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Finding the Fourth Proportional to 85,009.84, 127,366.98 and 59,655.58

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Solution

The fourth proportional to 85,009.84, 127,366.98 and 59,655.58 is: 89,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,009.84 : 127,366.98 = 59,655.58 : x
  2. Step 2: Convert to fraction form
    85,009.84/127,366.98 = 59,655.58/x
  3. Step 3: Cross multiply
    85,009.84x = 127,366.98 × 59,655.58
  4. Step 4: Simplify right side
    85,009.84x = 7,598,151,064.75
  5. Step 5: Solve for x
    x = 7,598,151,064.75/85,009.84
  6. Step 6: Final answer
    x = 89,379.67

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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.