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Finding the Fourth Proportional to 125,878.68, 188,818.50 and 51,000.24

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Solution

The fourth proportional to 125,878.68, 188,818.50 and 51,000.24 is: 76,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,878.68 : 188,818.50 = 51,000.24 : x
  2. Step 2: Convert to fraction form
    125,878.68/188,818.50 = 51,000.24/x
  3. Step 3: Cross multiply
    125,878.68x = 188,818.50 × 51,000.24
  4. Step 4: Simplify right side
    125,878.68x = 9,629,788,816.44
  5. Step 5: Solve for x
    x = 9,629,788,816.44/125,878.68
  6. Step 6: Final answer
    x = 76,500.55

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1.5x scale

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.