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Finding the Fourth Proportional to 181,036.80, 271,555.20 and 81,090.90

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Solution

The fourth proportional to 181,036.80, 271,555.20 and 81,090.90 is: 121,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,036.80 : 271,555.20 = 81,090.90 : x
  2. Step 2: Convert to fraction form
    181,036.80/271,555.20 = 81,090.90/x
  3. Step 3: Cross multiply
    181,036.80x = 271,555.20 × 81,090.90
  4. Step 4: Simplify right side
    181,036.80x = 22,020,655,567.68
  5. Step 5: Solve for x
    x = 22,020,655,567.68/181,036.80
  6. Step 6: Final answer
    x = 121,636.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.