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Finding the Fourth Proportional to 107,295.96, 148,001.06 and 69,105

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Solution

The fourth proportional to 107,295.96, 148,001.06 and 69,105 is: 95,321.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,295.96 : 148,001.06 = 69,105 : x
  2. Step 2: Convert to fraction form
    107,295.96/148,001.06 = 69,105/x
  3. Step 3: Cross multiply
    107,295.96x = 148,001.06 × 69,105
  4. Step 4: Simplify right side
    107,295.96x = 10,227,613,251.30
  5. Step 5: Solve for x
    x = 10,227,613,251.30/107,295.96
  6. Step 6: Final answer
    x = 95,321.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.