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Finding the Fourth Proportional to 337,638.15, 506,270.26 and 138,098.67

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Solution

The fourth proportional to 337,638.15, 506,270.26 and 138,098.67 is: 207,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,638.15 : 506,270.26 = 138,098.67 : x
  2. Step 2: Convert to fraction form
    337,638.15/506,270.26 = 138,098.67/x
  3. Step 3: Cross multiply
    337,638.15x = 506,270.26 × 138,098.67
  4. Step 4: Simplify right side
    337,638.15x = 69,915,249,566.55
  5. Step 5: Solve for x
    x = 69,915,249,566.55/337,638.15
  6. Step 6: Final answer
    x = 207,071.53

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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.