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Finding the Fourth Proportional to 107,326.68, 148,059.36 and 75,513.12

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Solution

The fourth proportional to 107,326.68, 148,059.36 and 75,513.12 is: 104,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,326.68 : 148,059.36 = 75,513.12 : x
  2. Step 2: Convert to fraction form
    107,326.68/148,059.36 = 75,513.12/x
  3. Step 3: Cross multiply
    107,326.68x = 148,059.36 × 75,513.12
  4. Step 4: Simplify right side
    107,326.68x = 11,180,424,218.80
  5. Step 5: Solve for x
    x = 11,180,424,218.80/107,326.68
  6. Step 6: Final answer
    x = 104,171.90

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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.