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Finding the Fourth Proportional to 63,008.40, 94,512.60 and 42,013.20

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Solution

The fourth proportional to 63,008.40, 94,512.60 and 42,013.20 is: 63,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,008.40 : 94,512.60 = 42,013.20 : x
  2. Step 2: Convert to fraction form
    63,008.40/94,512.60 = 42,013.20/x
  3. Step 3: Cross multiply
    63,008.40x = 94,512.60 × 42,013.20
  4. Step 4: Simplify right side
    63,008.40x = 3,970,776,766.32
  5. Step 5: Solve for x
    x = 3,970,776,766.32/63,008.40
  6. Step 6: Final answer
    x = 63,019.80

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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.