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Finding the Fourth Proportional to 316,616.63, 474,329.03 and 156,505.15

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Solution

The fourth proportional to 316,616.63, 474,329.03 and 156,505.15 is: 234,463.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,616.63 : 474,329.03 = 156,505.15 : x
  2. Step 2: Convert to fraction form
    316,616.63/474,329.03 = 156,505.15/x
  3. Step 3: Cross multiply
    316,616.63x = 474,329.03 × 156,505.15
  4. Step 4: Simplify right side
    316,616.63x = 74,234,934,842.53
  5. Step 5: Solve for x
    x = 74,234,934,842.53/316,616.63
  6. Step 6: Final answer
    x = 234,463.16

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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.