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Finding the Fourth Proportional to 124,259.87, 186,450.86 and 49,377.90

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Solution

The fourth proportional to 124,259.87, 186,450.86 and 49,377.90 is: 74,091.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,259.87 : 186,450.86 = 49,377.90 : x
  2. Step 2: Convert to fraction form
    124,259.87/186,450.86 = 49,377.90/x
  3. Step 3: Cross multiply
    124,259.87x = 186,450.86 × 49,377.90
  4. Step 4: Simplify right side
    124,259.87x = 9,206,552,742.63
  5. Step 5: Solve for x
    x = 9,206,552,742.63/124,259.87
  6. Step 6: Final answer
    x = 74,091.12

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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.