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Finding the Fourth Proportional to 181,987.74, 272,815.29 and 154,087.56

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Solution

The fourth proportional to 181,987.74, 272,815.29 and 154,087.56 is: 230,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,987.74 : 272,815.29 = 154,087.56 : x
  2. Step 2: Convert to fraction form
    181,987.74/272,815.29 = 154,087.56/x
  3. Step 3: Cross multiply
    181,987.74x = 272,815.29 × 154,087.56
  4. Step 4: Simplify right side
    181,987.74x = 42,037,442,366.79
  5. Step 5: Solve for x
    x = 42,037,442,366.79/181,987.74
  6. Step 6: Final answer
    x = 230,990.52

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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.