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Finding the Fourth Proportional to 73,122.30, 109,726.65 and 48,234.30

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Solution

The fourth proportional to 73,122.30, 109,726.65 and 48,234.30 is: 72,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,122.30 : 109,726.65 = 48,234.30 : x
  2. Step 2: Convert to fraction form
    73,122.30/109,726.65 = 48,234.30/x
  3. Step 3: Cross multiply
    73,122.30x = 109,726.65 × 48,234.30
  4. Step 4: Simplify right side
    73,122.30x = 5,292,588,154.10
  5. Step 5: Solve for x
    x = 5,292,588,154.10/73,122.30
  6. Step 6: Final answer
    x = 72,379.95

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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.