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Finding the Fourth Proportional to 121,432.78, 182,119.77 and 62,237.98

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Solution

The fourth proportional to 121,432.78, 182,119.77 and 62,237.98 is: 93,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.78 : 182,119.77 = 62,237.98 : x
  2. Step 2: Convert to fraction form
    121,432.78/182,119.77 = 62,237.98/x
  3. Step 3: Cross multiply
    121,432.78x = 182,119.77 × 62,237.98
  4. Step 4: Simplify right side
    121,432.78x = 11,334,766,602.86
  5. Step 5: Solve for x
    x = 11,334,766,602.86/121,432.78
  6. Step 6: Final answer
    x = 93,341.90

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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.