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Finding the Fourth Proportional to 74,042.40, 111,079.80 and 24,124.80

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Solution

The fourth proportional to 74,042.40, 111,079.80 and 24,124.80 is: 36,192.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,042.40 : 111,079.80 = 24,124.80 : x
  2. Step 2: Convert to fraction form
    74,042.40/111,079.80 = 24,124.80/x
  3. Step 3: Cross multiply
    74,042.40x = 111,079.80 × 24,124.80
  4. Step 4: Simplify right side
    74,042.40x = 2,679,777,959.04
  5. Step 5: Solve for x
    x = 2,679,777,959.04/74,042.40
  6. Step 6: Final answer
    x = 36,192.48

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1.5x scale

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.