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Finding the Fourth Proportional to 318,359.27, 477,374.58 and 93,690.53

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Solution

The fourth proportional to 318,359.27, 477,374.58 and 93,690.53 is: 140,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,359.27 : 477,374.58 = 93,690.53 : x
  2. Step 2: Convert to fraction form
    318,359.27/477,374.58 = 93,690.53/x
  3. Step 3: Cross multiply
    318,359.27x = 477,374.58 × 93,690.53
  4. Step 4: Simplify right side
    318,359.27x = 44,725,478,602.16
  5. Step 5: Solve for x
    x = 44,725,478,602.16/318,359.27
  6. Step 6: Final answer
    x = 140,487.44

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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.