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Finding the Fourth Proportional to 181,009.95, 249,793.73 and 100,450.43

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Solution

The fourth proportional to 181,009.95, 249,793.73 and 100,450.43 is: 138,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,009.95 : 249,793.73 = 100,450.43 : x
  2. Step 2: Convert to fraction form
    181,009.95/249,793.73 = 100,450.43/x
  3. Step 3: Cross multiply
    181,009.95x = 249,793.73 × 100,450.43
  4. Step 4: Simplify right side
    181,009.95x = 25,091,887,589.80
  5. Step 5: Solve for x
    x = 25,091,887,589.80/181,009.95
  6. Step 6: Final answer
    x = 138,621.59

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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.