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Finding the Fourth Proportional to 125,553.98, 188,282.77 and 53,461.18

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Solution

The fourth proportional to 125,553.98, 188,282.77 and 53,461.18 is: 80,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,553.98 : 188,282.77 = 53,461.18 : x
  2. Step 2: Convert to fraction form
    125,553.98/188,282.77 = 53,461.18/x
  3. Step 3: Cross multiply
    125,553.98x = 188,282.77 × 53,461.18
  4. Step 4: Simplify right side
    125,553.98x = 10,065,819,057.87
  5. Step 5: Solve for x
    x = 10,065,819,057.87/125,553.98
  6. Step 6: Final answer
    x = 80,171.25

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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.