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Finding the Fourth Proportional to 161,654.60, 223,083.10 and 90,040.88

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Solution

The fourth proportional to 161,654.60, 223,083.10 and 90,040.88 is: 124,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,654.60 : 223,083.10 = 90,040.88 : x
  2. Step 2: Convert to fraction form
    161,654.60/223,083.10 = 90,040.88/x
  3. Step 3: Cross multiply
    161,654.60x = 223,083.10 × 90,040.88
  4. Step 4: Simplify right side
    161,654.60x = 20,086,598,637.13
  5. Step 5: Solve for x
    x = 20,086,598,637.13/161,654.60
  6. Step 6: Final answer
    x = 124,256.28

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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.