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Finding the Fourth Proportional to 125,901.60, 188,852.42 and 41,639.15

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Solution

The fourth proportional to 125,901.60, 188,852.42 and 41,639.15 is: 62,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,901.60 : 188,852.42 = 41,639.15 : x
  2. Step 2: Convert to fraction form
    125,901.60/188,852.42 = 41,639.15/x
  3. Step 3: Cross multiply
    125,901.60x = 188,852.42 × 41,639.15
  4. Step 4: Simplify right side
    125,901.60x = 7,863,653,299.98
  5. Step 5: Solve for x
    x = 7,863,653,299.98/125,901.60
  6. Step 6: Final answer
    x = 62,458.72

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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.