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Finding the Fourth Proportional to 125,890.34, 188,864.84 and 41,647.10

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Solution

The fourth proportional to 125,890.34, 188,864.84 and 41,647.10 is: 62,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,890.34 : 188,864.84 = 41,647.10 : x
  2. Step 2: Convert to fraction form
    125,890.34/188,864.84 = 41,647.10/x
  3. Step 3: Cross multiply
    125,890.34x = 188,864.84 × 41,647.10
  4. Step 4: Simplify right side
    125,890.34x = 7,865,672,037.76
  5. Step 5: Solve for x
    x = 7,865,672,037.76/125,890.34
  6. Step 6: Final answer
    x = 62,480.35

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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.