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Finding the Fourth Proportional to 376,068.32, 564,095.20 and 91,760.72

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Solution

The fourth proportional to 376,068.32, 564,095.20 and 91,760.72 is: 137,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,068.32 : 564,095.20 = 91,760.72 : x
  2. Step 2: Convert to fraction form
    376,068.32/564,095.20 = 91,760.72/x
  3. Step 3: Cross multiply
    376,068.32x = 564,095.20 × 91,760.72
  4. Step 4: Simplify right side
    376,068.32x = 51,761,781,700.54
  5. Step 5: Solve for x
    x = 51,761,781,700.54/376,068.32
  6. Step 6: Final answer
    x = 137,639.30

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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.