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Finding the Fourth Proportional to 141,598.86, 195,404.90 and 77,935.28

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Solution

The fourth proportional to 141,598.86, 195,404.90 and 77,935.28 is: 107,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,598.86 : 195,404.90 = 77,935.28 : x
  2. Step 2: Convert to fraction form
    141,598.86/195,404.90 = 77,935.28/x
  3. Step 3: Cross multiply
    141,598.86x = 195,404.90 × 77,935.28
  4. Step 4: Simplify right side
    141,598.86x = 15,228,935,594.87
  5. Step 5: Solve for x
    x = 15,228,935,594.87/141,598.86
  6. Step 6: Final answer
    x = 107,549.85

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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.