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Finding the Fourth Proportional to 181,061.70, 249,866.80 and 109,489.56

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Solution

The fourth proportional to 181,061.70, 249,866.80 and 109,489.56 is: 151,096.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,061.70 : 249,866.80 = 109,489.56 : x
  2. Step 2: Convert to fraction form
    181,061.70/249,866.80 = 109,489.56/x
  3. Step 3: Cross multiply
    181,061.70x = 249,866.80 × 109,489.56
  4. Step 4: Simplify right side
    181,061.70x = 27,357,805,990.61
  5. Step 5: Solve for x
    x = 27,357,805,990.61/181,061.70
  6. Step 6: Final answer
    x = 151,096.59

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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.