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Finding the Fourth Proportional to 315,340.55, 473,086.15 and 102,108.68

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Solution

The fourth proportional to 315,340.55, 473,086.15 and 102,108.68 is: 153,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,340.55 : 473,086.15 = 102,108.68 : x
  2. Step 2: Convert to fraction form
    315,340.55/473,086.15 = 102,108.68/x
  3. Step 3: Cross multiply
    315,340.55x = 473,086.15 × 102,108.68
  4. Step 4: Simplify right side
    315,340.55x = 48,306,204,691.62
  5. Step 5: Solve for x
    x = 48,306,204,691.62/315,340.55
  6. Step 6: Final answer
    x = 153,187.42

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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.