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Finding the Fourth Proportional to 124,443.60, 186,665.40 and 113,557.20

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Solution

The fourth proportional to 124,443.60, 186,665.40 and 113,557.20 is: 170,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,443.60 : 186,665.40 = 113,557.20 : x
  2. Step 2: Convert to fraction form
    124,443.60/186,665.40 = 113,557.20/x
  3. Step 3: Cross multiply
    124,443.60x = 186,665.40 × 113,557.20
  4. Step 4: Simplify right side
    124,443.60x = 21,197,200,160.88
  5. Step 5: Solve for x
    x = 21,197,200,160.88/124,443.60
  6. Step 6: Final answer
    x = 170,335.80

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1.5x scale

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.