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Finding the Fourth Proportional to 146,039.70, 219,034.71 and 40,834.20

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Solution

The fourth proportional to 146,039.70, 219,034.71 and 40,834.20 is: 61,244.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,039.70 : 219,034.71 = 40,834.20 : x
  2. Step 2: Convert to fraction form
    146,039.70/219,034.71 = 40,834.20/x
  3. Step 3: Cross multiply
    146,039.70x = 219,034.71 × 40,834.20
  4. Step 4: Simplify right side
    146,039.70x = 8,944,107,155.08
  5. Step 5: Solve for x
    x = 8,944,107,155.08/146,039.70
  6. Step 6: Final answer
    x = 61,244.35

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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.