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Finding the Fourth Proportional to 99,230.81, 148,803.08 and 36,029.88

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Solution

The fourth proportional to 99,230.81, 148,803.08 and 36,029.88 is: 54,029.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.81 : 148,803.08 = 36,029.88 : x
  2. Step 2: Convert to fraction form
    99,230.81/148,803.08 = 36,029.88/x
  3. Step 3: Cross multiply
    99,230.81x = 148,803.08 × 36,029.88
  4. Step 4: Simplify right side
    99,230.81x = 5,361,356,935.88
  5. Step 5: Solve for x
    x = 5,361,356,935.88/99,230.81
  6. Step 6: Final answer
    x = 54,029.16

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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.