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Finding the Fourth Proportional to 74,691.93, 103,073.54 and 40,700.67

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Solution

The fourth proportional to 74,691.93, 103,073.54 and 40,700.67 is: 56,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,691.93 : 103,073.54 = 40,700.67 : x
  2. Step 2: Convert to fraction form
    74,691.93/103,073.54 = 40,700.67/x
  3. Step 3: Cross multiply
    74,691.93x = 103,073.54 × 40,700.67
  4. Step 4: Simplify right side
    74,691.93x = 4,195,162,137.27
  5. Step 5: Solve for x
    x = 4,195,162,137.27/74,691.93
  6. Step 6: Final answer
    x = 56,166.20

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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.