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Finding the Fourth Proportional to 125,616.30, 188,424.45 and 119,492.70

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Solution

The fourth proportional to 125,616.30, 188,424.45 and 119,492.70 is: 179,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,616.30 : 188,424.45 = 119,492.70 : x
  2. Step 2: Convert to fraction form
    125,616.30/188,424.45 = 119,492.70/x
  3. Step 3: Cross multiply
    125,616.30x = 188,424.45 × 119,492.70
  4. Step 4: Simplify right side
    125,616.30x = 22,515,346,276.52
  5. Step 5: Solve for x
    x = 22,515,346,276.52/125,616.30
  6. Step 6: Final answer
    x = 179,239.05

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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.