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Finding the Fourth Proportional to 181,003.80, 249,786.34 and 100,432.90

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Solution

The fourth proportional to 181,003.80, 249,786.34 and 100,432.90 is: 138,598.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,003.80 : 249,786.34 = 100,432.90 : x
  2. Step 2: Convert to fraction form
    181,003.80/249,786.34 = 100,432.90/x
  3. Step 3: Cross multiply
    181,003.80x = 249,786.34 × 100,432.90
  4. Step 4: Simplify right side
    181,003.80x = 25,086,765,631.04
  5. Step 5: Solve for x
    x = 25,086,765,631.04/181,003.80
  6. Step 6: Final answer
    x = 138,598.01

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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.