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Finding the Fourth Proportional to 96,109.71, 132,693.75 and 86,020.66

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Solution

The fourth proportional to 96,109.71, 132,693.75 and 86,020.66 is: 118,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,109.71 : 132,693.75 = 86,020.66 : x
  2. Step 2: Convert to fraction form
    96,109.71/132,693.75 = 86,020.66/x
  3. Step 3: Cross multiply
    96,109.71x = 132,693.75 × 86,020.66
  4. Step 4: Simplify right side
    96,109.71x = 11,414,403,952.88
  5. Step 5: Solve for x
    x = 11,414,403,952.88/96,109.71
  6. Step 6: Final answer
    x = 118,764.32

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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.