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Finding the Fourth Proportional to 124,947.40, 187,421.10 and 41,841.40

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Solution

The fourth proportional to 124,947.40, 187,421.10 and 41,841.40 is: 62,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,947.40 : 187,421.10 = 41,841.40 : x
  2. Step 2: Convert to fraction form
    124,947.40/187,421.10 = 41,841.40/x
  3. Step 3: Cross multiply
    124,947.40x = 187,421.10 × 41,841.40
  4. Step 4: Simplify right side
    124,947.40x = 7,841,961,213.54
  5. Step 5: Solve for x
    x = 7,841,961,213.54/124,947.40
  6. Step 6: Final answer
    x = 62,762.10

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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.