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Finding the Fourth Proportional to 318,362.60, 477,379.54 and 93,693.86

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Solution

The fourth proportional to 318,362.60, 477,379.54 and 93,693.86 is: 140,492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,362.60 : 477,379.54 = 93,693.86 : x
  2. Step 2: Convert to fraction form
    318,362.60/477,379.54 = 93,693.86/x
  3. Step 3: Cross multiply
    318,362.60x = 477,379.54 × 93,693.86
  4. Step 4: Simplify right side
    318,362.60x = 44,727,531,787.62
  5. Step 5: Solve for x
    x = 44,727,531,787.62/318,362.60
  6. Step 6: Final answer
    x = 140,492.42

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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.