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Finding the Fourth Proportional to 125,803.50, 173,610.45 and 69,213.66

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Solution

The fourth proportional to 125,803.50, 173,610.45 and 69,213.66 is: 95,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,803.50 : 173,610.45 = 69,213.66 : x
  2. Step 2: Convert to fraction form
    125,803.50/173,610.45 = 69,213.66/x
  3. Step 3: Cross multiply
    125,803.50x = 173,610.45 × 69,213.66
  4. Step 4: Simplify right side
    125,803.50x = 12,016,214,658.75
  5. Step 5: Solve for x
    x = 12,016,214,658.75/125,803.50
  6. Step 6: Final answer
    x = 95,515.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.