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Finding the Fourth Proportional to 125,639.88, 188,478.52 and 41,384.52

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Solution

The fourth proportional to 125,639.88, 188,478.52 and 41,384.52 is: 62,082.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,639.88 : 188,478.52 = 41,384.52 : x
  2. Step 2: Convert to fraction form
    125,639.88/188,478.52 = 41,384.52/x
  3. Step 3: Cross multiply
    125,639.88x = 188,478.52 × 41,384.52
  4. Step 4: Simplify right side
    125,639.88x = 7,800,093,080.51
  5. Step 5: Solve for x
    x = 7,800,093,080.51/125,639.88
  6. Step 6: Final answer
    x = 62,082.94

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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.