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Finding the Fourth Proportional to 67,999.40, 101,768.70 and 67,999.40

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Solution

The fourth proportional to 67,999.40, 101,768.70 and 67,999.40 is: 101,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.40 : 101,768.70 = 67,999.40 : x
  2. Step 2: Convert to fraction form
    67,999.40/101,768.70 = 67,999.40/x
  3. Step 3: Cross multiply
    67,999.40x = 101,768.70 × 67,999.40
  4. Step 4: Simplify right side
    67,999.40x = 6,920,210,538.78
  5. Step 5: Solve for x
    x = 6,920,210,538.78/67,999.40
  6. Step 6: Final answer
    x = 101,768.70

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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.