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Finding the Fourth Proportional to 83,221.47, 124,863.72 and 49,964.76

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Solution

The fourth proportional to 83,221.47, 124,863.72 and 49,964.76 is: 74,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,221.47 : 124,863.72 = 49,964.76 : x
  2. Step 2: Convert to fraction form
    83,221.47/124,863.72 = 49,964.76/x
  3. Step 3: Cross multiply
    83,221.47x = 124,863.72 × 49,964.76
  4. Step 4: Simplify right side
    83,221.47x = 6,238,785,802.51
  5. Step 5: Solve for x
    x = 6,238,785,802.51/83,221.47
  6. Step 6: Final answer
    x = 74,966.06

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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.