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Finding the Fourth Proportional to 83,998.30, 126,775.22 and 83,998.30

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Solution

The fourth proportional to 83,998.30, 126,775.22 and 83,998.30 is: 126,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,998.30 : 126,775.22 = 83,998.30 : x
  2. Step 2: Convert to fraction form
    83,998.30/126,775.22 = 83,998.30/x
  3. Step 3: Cross multiply
    83,998.30x = 126,775.22 × 83,998.30
  4. Step 4: Simplify right side
    83,998.30x = 10,648,902,962.13
  5. Step 5: Solve for x
    x = 10,648,902,962.13/83,998.30
  6. Step 6: Final answer
    x = 126,775.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.