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Finding the Fourth Proportional to 124,359, 171,615.48 and 67,770.36

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Solution

The fourth proportional to 124,359, 171,615.48 and 67,770.36 is: 93,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,359 : 171,615.48 = 67,770.36 : x
  2. Step 2: Convert to fraction form
    124,359/171,615.48 = 67,770.36/x
  3. Step 3: Cross multiply
    124,359x = 171,615.48 × 67,770.36
  4. Step 4: Simplify right side
    124,359x = 11,630,442,861.17
  5. Step 5: Solve for x
    x = 11,630,442,861.17/124,359
  6. Step 6: Final answer
    x = 93,523.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.