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Finding the Fourth Proportional to 316,572.32, 474,864.56 and 116,789.88

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Solution

The fourth proportional to 316,572.32, 474,864.56 and 116,789.88 is: 175,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,572.32 : 474,864.56 = 116,789.88 : x
  2. Step 2: Convert to fraction form
    316,572.32/474,864.56 = 116,789.88/x
  3. Step 3: Cross multiply
    316,572.32x = 474,864.56 × 116,789.88
  4. Step 4: Simplify right side
    316,572.32x = 55,459,374,978.65
  5. Step 5: Solve for x
    x = 55,459,374,978.65/316,572.32
  6. Step 6: Final answer
    x = 175,187.06

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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.