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Finding the Fourth Proportional to 343,032.72, 514,630.85 and 118,395.12

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Solution

The fourth proportional to 343,032.72, 514,630.85 and 118,395.12 is: 177,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,032.72 : 514,630.85 = 118,395.12 : x
  2. Step 2: Convert to fraction form
    343,032.72/514,630.85 = 118,395.12/x
  3. Step 3: Cross multiply
    343,032.72x = 514,630.85 × 118,395.12
  4. Step 4: Simplify right side
    343,032.72x = 60,929,780,350.52
  5. Step 5: Solve for x
    x = 60,929,780,350.52/343,032.72
  6. Step 6: Final answer
    x = 177,620.90

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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.