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Finding the Fourth Proportional to 99,459.66, 149,142.51 and 36,235.53

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Solution

The fourth proportional to 99,459.66, 149,142.51 and 36,235.53 is: 54,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,459.66 : 149,142.51 = 36,235.53 : x
  2. Step 2: Convert to fraction form
    99,459.66/149,142.51 = 36,235.53/x
  3. Step 3: Cross multiply
    99,459.66x = 149,142.51 × 36,235.53
  4. Step 4: Simplify right side
    99,459.66x = 5,404,257,895.38
  5. Step 5: Solve for x
    x = 5,404,257,895.38/99,459.66
  6. Step 6: Final answer
    x = 54,336.18

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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.