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Finding the Fourth Proportional to 133,031.70, 199,605.15 and 62,874.90

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Solution

The fourth proportional to 133,031.70, 199,605.15 and 62,874.90 is: 94,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,031.70 : 199,605.15 = 62,874.90 : x
  2. Step 2: Convert to fraction form
    133,031.70/199,605.15 = 62,874.90/x
  3. Step 3: Cross multiply
    133,031.70x = 199,605.15 × 62,874.90
  4. Step 4: Simplify right side
    133,031.70x = 12,550,153,845.74
  5. Step 5: Solve for x
    x = 12,550,153,845.74/133,031.70
  6. Step 6: Final answer
    x = 94,339.57

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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.