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Finding the Fourth Proportional to 82,883.68, 124,326.39 and 66,348.82

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Solution

The fourth proportional to 82,883.68, 124,326.39 and 66,348.82 is: 99,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,883.68 : 124,326.39 = 66,348.82 : x
  2. Step 2: Convert to fraction form
    82,883.68/124,326.39 = 66,348.82/x
  3. Step 3: Cross multiply
    82,883.68x = 124,326.39 × 66,348.82
  4. Step 4: Simplify right side
    82,883.68x = 8,248,908,939.62
  5. Step 5: Solve for x
    x = 8,248,908,939.62/82,883.68
  6. Step 6: Final answer
    x = 99,523.92

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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.