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Finding the Fourth Proportional to 124,257.40, 186,410.40 and 49,364.80

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Solution

The fourth proportional to 124,257.40, 186,410.40 and 49,364.80 is: 74,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,257.40 : 186,410.40 = 49,364.80 : x
  2. Step 2: Convert to fraction form
    124,257.40/186,410.40 = 49,364.80/x
  3. Step 3: Cross multiply
    124,257.40x = 186,410.40 × 49,364.80
  4. Step 4: Simplify right side
    124,257.40x = 9,202,112,113.92
  5. Step 5: Solve for x
    x = 9,202,112,113.92/124,257.40
  6. Step 6: Final answer
    x = 74,056.85

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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.