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Finding the Fourth Proportional to 125,551.98, 188,279.77 and 53,459.18

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Solution

The fourth proportional to 125,551.98, 188,279.77 and 53,459.18 is: 80,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,551.98 : 188,279.77 = 53,459.18 : x
  2. Step 2: Convert to fraction form
    125,551.98/188,279.77 = 53,459.18/x
  3. Step 3: Cross multiply
    125,551.98x = 188,279.77 × 53,459.18
  4. Step 4: Simplify right side
    125,551.98x = 10,065,282,114.79
  5. Step 5: Solve for x
    x = 10,065,282,114.79/125,551.98
  6. Step 6: Final answer
    x = 80,168.25

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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.