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Finding the Fourth Proportional to 316,156.54, 474,234.81 and 129,168.04

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Solution

The fourth proportional to 316,156.54, 474,234.81 and 129,168.04 is: 193,752.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,156.54 : 474,234.81 = 129,168.04 : x
  2. Step 2: Convert to fraction form
    316,156.54/474,234.81 = 129,168.04/x
  3. Step 3: Cross multiply
    316,156.54x = 474,234.81 × 129,168.04
  4. Step 4: Simplify right side
    316,156.54x = 61,255,980,907.47
  5. Step 5: Solve for x
    x = 61,255,980,907.47/316,156.54
  6. Step 6: Final answer
    x = 193,752.06

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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.