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Finding the Fourth Proportional to 99,225.90, 148,859.34 and 32,670

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Solution

The fourth proportional to 99,225.90, 148,859.34 and 32,670 is: 49,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,225.90 : 148,859.34 = 32,670 : x
  2. Step 2: Convert to fraction form
    99,225.90/148,859.34 = 32,670/x
  3. Step 3: Cross multiply
    99,225.90x = 148,859.34 × 32,670
  4. Step 4: Simplify right side
    99,225.90x = 4,863,234,637.80
  5. Step 5: Solve for x
    x = 4,863,234,637.80/99,225.90
  6. Step 6: Final answer
    x = 49,011.75

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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.