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Finding the Fourth Proportional to 40,107.61, 60,162.02 and 15,159.41

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Solution

The fourth proportional to 40,107.61, 60,162.02 and 15,159.41 is: 22,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,107.61 : 60,162.02 = 15,159.41 : x
  2. Step 2: Convert to fraction form
    40,107.61/60,162.02 = 15,159.41/x
  3. Step 3: Cross multiply
    40,107.61x = 60,162.02 × 15,159.41
  4. Step 4: Simplify right side
    40,107.61x = 912,020,727.61
  5. Step 5: Solve for x
    x = 912,020,727.61/40,107.61
  6. Step 6: Final answer
    x = 22,739.34

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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.