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Finding the Fourth Proportional to 108,882.64, 150,256.92 and 61,134.88

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Solution

The fourth proportional to 108,882.64, 150,256.92 and 61,134.88 is: 84,365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,882.64 : 150,256.92 = 61,134.88 : x
  2. Step 2: Convert to fraction form
    108,882.64/150,256.92 = 61,134.88/x
  3. Step 3: Cross multiply
    108,882.64x = 150,256.92 × 61,134.88
  4. Step 4: Simplify right side
    108,882.64x = 9,185,938,773.37
  5. Step 5: Solve for x
    x = 9,185,938,773.37/108,882.64
  6. Step 6: Final answer
    x = 84,365.50

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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.