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Finding the Fourth Proportional to 103,706.66, 155,552.47 and 40,514.92

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Solution

The fourth proportional to 103,706.66, 155,552.47 and 40,514.92 is: 60,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,706.66 : 155,552.47 = 40,514.92 : x
  2. Step 2: Convert to fraction form
    103,706.66/155,552.47 = 40,514.92/x
  3. Step 3: Cross multiply
    103,706.66x = 155,552.47 × 40,514.92
  4. Step 4: Simplify right side
    103,706.66x = 6,302,195,877.85
  5. Step 5: Solve for x
    x = 6,302,195,877.85/103,706.66
  6. Step 6: Final answer
    x = 60,769.44

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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.