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Finding the Fourth Proportional to 108,875.88, 150,264.99 and 66,458.88

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Solution

The fourth proportional to 108,875.88, 150,264.99 and 66,458.88 is: 91,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,875.88 : 150,264.99 = 66,458.88 : x
  2. Step 2: Convert to fraction form
    108,875.88/150,264.99 = 66,458.88/x
  3. Step 3: Cross multiply
    108,875.88x = 150,264.99 × 66,458.88
  4. Step 4: Simplify right side
    108,875.88x = 9,986,442,938.61
  5. Step 5: Solve for x
    x = 9,986,442,938.61/108,875.88
  6. Step 6: Final answer
    x = 91,723.19

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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.