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Finding the Fourth Proportional to 124,340.39, 186,539.72 and 49,464.80

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Solution

The fourth proportional to 124,340.39, 186,539.72 and 49,464.80 is: 74,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,340.39 : 186,539.72 = 49,464.80 : x
  2. Step 2: Convert to fraction form
    124,340.39/186,539.72 = 49,464.80/x
  3. Step 3: Cross multiply
    124,340.39x = 186,539.72 × 49,464.80
  4. Step 4: Simplify right side
    124,340.39x = 9,227,148,761.83
  5. Step 5: Solve for x
    x = 9,227,148,761.83/124,340.39
  6. Step 6: Final answer
    x = 74,208.78

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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.