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Finding the Fourth Proportional to 124,101.60, 186,195.60 and 54,002.40

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Solution

The fourth proportional to 124,101.60, 186,195.60 and 54,002.40 is: 81,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,101.60 : 186,195.60 = 54,002.40 : x
  2. Step 2: Convert to fraction form
    124,101.60/186,195.60 = 54,002.40/x
  3. Step 3: Cross multiply
    124,101.60x = 186,195.60 × 54,002.40
  4. Step 4: Simplify right side
    124,101.60x = 10,055,009,269.44
  5. Step 5: Solve for x
    x = 10,055,009,269.44/124,101.60
  6. Step 6: Final answer
    x = 81,022.40

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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.