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Finding the Fourth Proportional to 83,049.60, 124,574.40 and 49,807.20

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Solution

The fourth proportional to 83,049.60, 124,574.40 and 49,807.20 is: 74,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,049.60 : 124,574.40 = 49,807.20 : x
  2. Step 2: Convert to fraction form
    83,049.60/124,574.40 = 49,807.20/x
  3. Step 3: Cross multiply
    83,049.60x = 124,574.40 × 49,807.20
  4. Step 4: Simplify right side
    83,049.60x = 6,204,702,055.68
  5. Step 5: Solve for x
    x = 6,204,702,055.68/83,049.60
  6. Step 6: Final answer
    x = 74,710.80

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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.