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Finding the Fourth Proportional to 181,092.56, 249,881.10 and 100,520.69

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Solution

The fourth proportional to 181,092.56, 249,881.10 and 100,520.69 is: 138,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,092.56 : 249,881.10 = 100,520.69 : x
  2. Step 2: Convert to fraction form
    181,092.56/249,881.10 = 100,520.69/x
  3. Step 3: Cross multiply
    181,092.56x = 249,881.10 × 100,520.69
  4. Step 4: Simplify right side
    181,092.56x = 25,118,220,589.96
  5. Step 5: Solve for x
    x = 25,118,220,589.96/181,092.56
  6. Step 6: Final answer
    x = 138,703.77

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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.