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Finding the Fourth Proportional to 115,125.84, 158,873.92 and 66,737.10

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Solution

The fourth proportional to 115,125.84, 158,873.92 and 66,737.10 is: 92,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,125.84 : 158,873.92 = 66,737.10 : x
  2. Step 2: Convert to fraction form
    115,125.84/158,873.92 = 66,737.10/x
  3. Step 3: Cross multiply
    115,125.84x = 158,873.92 × 66,737.10
  4. Step 4: Simplify right side
    115,125.84x = 10,602,784,686.43
  5. Step 5: Solve for x
    x = 10,602,784,686.43/115,125.84
  6. Step 6: Final answer
    x = 92,097.35

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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.