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Finding the Fourth Proportional to 181,624.80, 272,437.20 and 125,637.60

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Solution

The fourth proportional to 181,624.80, 272,437.20 and 125,637.60 is: 188,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,624.80 : 272,437.20 = 125,637.60 : x
  2. Step 2: Convert to fraction form
    181,624.80/272,437.20 = 125,637.60/x
  3. Step 3: Cross multiply
    181,624.80x = 272,437.20 × 125,637.60
  4. Step 4: Simplify right side
    181,624.80x = 34,228,355,958.72
  5. Step 5: Solve for x
    x = 34,228,355,958.72/181,624.80
  6. Step 6: Final answer
    x = 188,456.40

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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.