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Finding the Fourth Proportional to 73,778.76, 101,814.57 and 40,244.76

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Solution

The fourth proportional to 73,778.76, 101,814.57 and 40,244.76 is: 55,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,778.76 : 101,814.57 = 40,244.76 : x
  2. Step 2: Convert to fraction form
    73,778.76/101,814.57 = 40,244.76/x
  3. Step 3: Cross multiply
    73,778.76x = 101,814.57 × 40,244.76
  4. Step 4: Simplify right side
    73,778.76x = 4,097,502,934.15
  5. Step 5: Solve for x
    x = 4,097,502,934.15/73,778.76
  6. Step 6: Final answer
    x = 55,537.70

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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.