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Finding the Fourth Proportional to 125,244.88, 187,555.84 and 87,628.85

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Solution

The fourth proportional to 125,244.88, 187,555.84 and 87,628.85 is: 131,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,244.88 : 187,555.84 = 87,628.85 : x
  2. Step 2: Convert to fraction form
    125,244.88/187,555.84 = 87,628.85/x
  3. Step 3: Cross multiply
    125,244.88x = 187,555.84 × 87,628.85
  4. Step 4: Simplify right side
    125,244.88x = 16,435,302,116.47
  5. Step 5: Solve for x
    x = 16,435,302,116.47/125,244.88
  6. Step 6: Final answer
    x = 131,225.34

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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.