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Finding the Fourth Proportional to 124,410.60, 186,615.90 and 74,644.20

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Solution

The fourth proportional to 124,410.60, 186,615.90 and 74,644.20 is: 111,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,410.60 : 186,615.90 = 74,644.20 : x
  2. Step 2: Convert to fraction form
    124,410.60/186,615.90 = 74,644.20/x
  3. Step 3: Cross multiply
    124,410.60x = 186,615.90 × 74,644.20
  4. Step 4: Simplify right side
    124,410.60x = 13,929,794,562.78
  5. Step 5: Solve for x
    x = 13,929,794,562.78/124,410.60
  6. Step 6: Final answer
    x = 111,966.30

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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.