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Finding the Fourth Proportional to 99,053.11, 136,692.84 and 53,731.11

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Solution

The fourth proportional to 99,053.11, 136,692.84 and 53,731.11 is: 74,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,053.11 : 136,692.84 = 53,731.11 : x
  2. Step 2: Convert to fraction form
    99,053.11/136,692.84 = 53,731.11/x
  3. Step 3: Cross multiply
    99,053.11x = 136,692.84 × 53,731.11
  4. Step 4: Simplify right side
    99,053.11x = 7,344,658,022.25
  5. Step 5: Solve for x
    x = 7,344,658,022.25/99,053.11
  6. Step 6: Final answer
    x = 74,148.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.