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Finding the Fourth Proportional to 361,688.72, 542,527.61 and 151,326.65

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Solution

The fourth proportional to 361,688.72, 542,527.61 and 151,326.65 is: 226,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,688.72 : 542,527.61 = 151,326.65 : x
  2. Step 2: Convert to fraction form
    361,688.72/542,527.61 = 151,326.65/x
  3. Step 3: Cross multiply
    361,688.72x = 542,527.61 × 151,326.65
  4. Step 4: Simplify right side
    361,688.72x = 82,098,886,353.49
  5. Step 5: Solve for x
    x = 82,098,886,353.49/361,688.72
  6. Step 6: Final answer
    x = 226,987.69

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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.