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Finding the Fourth Proportional to 83,041.60, 124,562.40 and 49,799.20

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Solution

The fourth proportional to 83,041.60, 124,562.40 and 49,799.20 is: 74,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,041.60 : 124,562.40 = 49,799.20 : x
  2. Step 2: Convert to fraction form
    83,041.60/124,562.40 = 49,799.20/x
  3. Step 3: Cross multiply
    83,041.60x = 124,562.40 × 49,799.20
  4. Step 4: Simplify right side
    83,041.60x = 6,203,107,870.08
  5. Step 5: Solve for x
    x = 6,203,107,870.08/83,041.60
  6. Step 6: Final answer
    x = 74,698.80

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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.