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Finding the Fourth Proportional to 124,460.60, 186,464.10 and 71,713.40

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Solution

The fourth proportional to 124,460.60, 186,464.10 and 71,713.40 is: 107,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,460.60 : 186,464.10 = 71,713.40 : x
  2. Step 2: Convert to fraction form
    124,460.60/186,464.10 = 71,713.40/x
  3. Step 3: Cross multiply
    124,460.60x = 186,464.10 × 71,713.40
  4. Step 4: Simplify right side
    124,460.60x = 13,371,974,588.94
  5. Step 5: Solve for x
    x = 13,371,974,588.94/124,460.60
  6. Step 6: Final answer
    x = 107,439.42

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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.