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Finding the Fourth Proportional to 125,866.35, 188,800.02 and 50,987.90

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Solution

The fourth proportional to 125,866.35, 188,800.02 and 50,987.90 is: 76,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,866.35 : 188,800.02 = 50,987.90 : x
  2. Step 2: Convert to fraction form
    125,866.35/188,800.02 = 50,987.90/x
  3. Step 3: Cross multiply
    125,866.35x = 188,800.02 × 50,987.90
  4. Step 4: Simplify right side
    125,866.35x = 9,626,515,595.76
  5. Step 5: Solve for x
    x = 9,626,515,595.76/125,866.35
  6. Step 6: Final answer
    x = 76,482.04

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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.