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Finding the Fourth Proportional to 61,602.48, 92,394.12 and 20,049.20

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Solution

The fourth proportional to 61,602.48, 92,394.12 and 20,049.20 is: 30,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,602.48 : 92,394.12 = 20,049.20 : x
  2. Step 2: Convert to fraction form
    61,602.48/92,394.12 = 20,049.20/x
  3. Step 3: Cross multiply
    61,602.48x = 92,394.12 × 20,049.20
  4. Step 4: Simplify right side
    61,602.48x = 1,852,428,190.70
  5. Step 5: Solve for x
    x = 1,852,428,190.70/61,602.48
  6. Step 6: Final answer
    x = 30,070.68

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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.