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Finding the Fourth Proportional to 141,614.92, 195,421.08 and 77,940.46

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Solution

The fourth proportional to 141,614.92, 195,421.08 and 77,940.46 is: 107,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,614.92 : 195,421.08 = 77,940.46 : x
  2. Step 2: Convert to fraction form
    141,614.92/195,421.08 = 77,940.46/x
  3. Step 3: Cross multiply
    141,614.92x = 195,421.08 × 77,940.46
  4. Step 4: Simplify right side
    141,614.92x = 15,231,208,868.90
  5. Step 5: Solve for x
    x = 15,231,208,868.90/141,614.92
  6. Step 6: Final answer
    x = 107,553.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.