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Finding the Fourth Proportional to 107,713.17, 161,329.16 and 78,062.92

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Solution

The fourth proportional to 107,713.17, 161,329.16 and 78,062.92 is: 116,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,713.17 : 161,329.16 = 78,062.92 : x
  2. Step 2: Convert to fraction form
    107,713.17/161,329.16 = 78,062.92/x
  3. Step 3: Cross multiply
    107,713.17x = 161,329.16 × 78,062.92
  4. Step 4: Simplify right side
    107,713.17x = 12,593,825,102.58
  5. Step 5: Solve for x
    x = 12,593,825,102.58/107,713.17
  6. Step 6: Final answer
    x = 116,920.01

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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.