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Finding the Fourth Proportional to 318,339.26, 477,456.98 and 93,647.14

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Solution

The fourth proportional to 318,339.26, 477,456.98 and 93,647.14 is: 140,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,339.26 : 477,456.98 = 93,647.14 : x
  2. Step 2: Convert to fraction form
    318,339.26/477,456.98 = 93,647.14/x
  3. Step 3: Cross multiply
    318,339.26x = 477,456.98 × 93,647.14
  4. Step 4: Simplify right side
    318,339.26x = 44,712,478,988.16
  5. Step 5: Solve for x
    x = 44,712,478,988.16/318,339.26
  6. Step 6: Final answer
    x = 140,455.43

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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.