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Finding the Fourth Proportional to 141,562.60, 195,351.42 and 77,898.76

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Solution

The fourth proportional to 141,562.60, 195,351.42 and 77,898.76 is: 107,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,562.60 : 195,351.42 = 77,898.76 : x
  2. Step 2: Convert to fraction form
    141,562.60/195,351.42 = 77,898.76/x
  3. Step 3: Cross multiply
    141,562.60x = 195,351.42 × 77,898.76
  4. Step 4: Simplify right side
    141,562.60x = 15,217,633,382.24
  5. Step 5: Solve for x
    x = 15,217,633,382.24/141,562.60
  6. Step 6: Final answer
    x = 107,497.56

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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.