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Finding the Fourth Proportional to 74,151.41, 102,330.82 and 45,486.88

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Solution

The fourth proportional to 74,151.41, 102,330.82 and 45,486.88 is: 62,773.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.41 : 102,330.82 = 45,486.88 : x
  2. Step 2: Convert to fraction form
    74,151.41/102,330.82 = 45,486.88/x
  3. Step 3: Cross multiply
    74,151.41x = 102,330.82 × 45,486.88
  4. Step 4: Simplify right side
    74,151.41x = 4,654,708,990.55
  5. Step 5: Solve for x
    x = 4,654,708,990.55/74,151.41
  6. Step 6: Final answer
    x = 62,773.03

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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.