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Finding the Fourth Proportional to 82,998.26, 123,968.15 and 75,088.58

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Solution

The fourth proportional to 82,998.26, 123,968.15 and 75,088.58 is: 112,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,998.26 : 123,968.15 = 75,088.58 : x
  2. Step 2: Convert to fraction form
    82,998.26/123,968.15 = 75,088.58/x
  3. Step 3: Cross multiply
    82,998.26x = 123,968.15 × 75,088.58
  4. Step 4: Simplify right side
    82,998.26x = 9,308,592,348.73
  5. Step 5: Solve for x
    x = 9,308,592,348.73/82,998.26
  6. Step 6: Final answer
    x = 112,154.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.