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Finding the Fourth Proportional to 94,144.65, 129,919.19 and 51,123.80

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Solution

The fourth proportional to 94,144.65, 129,919.19 and 51,123.80 is: 70,550.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,144.65 : 129,919.19 = 51,123.80 : x
  2. Step 2: Convert to fraction form
    94,144.65/129,919.19 = 51,123.80/x
  3. Step 3: Cross multiply
    94,144.65x = 129,919.19 × 51,123.80
  4. Step 4: Simplify right side
    94,144.65x = 6,641,962,685.72
  5. Step 5: Solve for x
    x = 6,641,962,685.72/94,144.65
  6. Step 6: Final answer
    x = 70,550.61

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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.