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Finding the Fourth Proportional to 100,041.03, 150,061.54 and 40,876.64

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Solution

The fourth proportional to 100,041.03, 150,061.54 and 40,876.64 is: 61,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,041.03 : 150,061.54 = 40,876.64 : x
  2. Step 2: Convert to fraction form
    100,041.03/150,061.54 = 40,876.64/x
  3. Step 3: Cross multiply
    100,041.03x = 150,061.54 × 40,876.64
  4. Step 4: Simplify right side
    100,041.03x = 6,134,011,974.68
  5. Step 5: Solve for x
    x = 6,134,011,974.68/100,041.03
  6. Step 6: Final answer
    x = 61,314.96

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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.