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Finding the Fourth Proportional to 82,883.78, 124,326.53 and 66,348.92

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Solution

The fourth proportional to 82,883.78, 124,326.53 and 66,348.92 is: 99,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,883.78 : 124,326.53 = 66,348.92 : x
  2. Step 2: Convert to fraction form
    82,883.78/124,326.53 = 66,348.92/x
  3. Step 3: Cross multiply
    82,883.78x = 124,326.53 × 66,348.92
  4. Step 4: Simplify right side
    82,883.78x = 8,248,930,521.39
  5. Step 5: Solve for x
    x = 8,248,930,521.39/82,883.78
  6. Step 6: Final answer
    x = 99,524.06

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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.