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Finding the Fourth Proportional to 99,468.90, 149,204.93 and 55,375.90

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Solution

The fourth proportional to 99,468.90, 149,204.93 and 55,375.90 is: 83,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,468.90 : 149,204.93 = 55,375.90 : x
  2. Step 2: Convert to fraction form
    99,468.90/149,204.93 = 55,375.90/x
  3. Step 3: Cross multiply
    99,468.90x = 149,204.93 × 55,375.90
  4. Step 4: Simplify right side
    99,468.90x = 8,262,357,283.19
  5. Step 5: Solve for x
    x = 8,262,357,283.19/99,468.90
  6. Step 6: Final answer
    x = 83,064.73

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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.