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Finding the Fourth Proportional to 134,614.45, 202,085.70 and 68,020.30

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Solution

The fourth proportional to 134,614.45, 202,085.70 and 68,020.30 is: 102,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,614.45 : 202,085.70 = 68,020.30 : x
  2. Step 2: Convert to fraction form
    134,614.45/202,085.70 = 68,020.30/x
  3. Step 3: Cross multiply
    134,614.45x = 202,085.70 × 68,020.30
  4. Step 4: Simplify right side
    134,614.45x = 13,745,929,939.71
  5. Step 5: Solve for x
    x = 13,745,929,939.71/134,614.45
  6. Step 6: Final answer
    x = 102,113.33

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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.