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Finding the Fourth Proportional to 124,235.40, 186,353.10 and 41,129.40

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Solution

The fourth proportional to 124,235.40, 186,353.10 and 41,129.40 is: 61,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,235.40 : 186,353.10 = 41,129.40 : x
  2. Step 2: Convert to fraction form
    124,235.40/186,353.10 = 41,129.40/x
  3. Step 3: Cross multiply
    124,235.40x = 186,353.10 × 41,129.40
  4. Step 4: Simplify right side
    124,235.40x = 7,664,591,191.14
  5. Step 5: Solve for x
    x = 7,664,591,191.14/124,235.40
  6. Step 6: Final answer
    x = 61,694.10

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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.