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Finding the Fourth Proportional to 74,651.69, 103,019.33 and 41,117.69

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Solution

The fourth proportional to 74,651.69, 103,019.33 and 41,117.69 is: 56,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,651.69 : 103,019.33 = 41,117.69 : x
  2. Step 2: Convert to fraction form
    74,651.69/103,019.33 = 41,117.69/x
  3. Step 3: Cross multiply
    74,651.69x = 103,019.33 × 41,117.69
  4. Step 4: Simplify right side
    74,651.69x = 4,235,916,874.95
  5. Step 5: Solve for x
    x = 4,235,916,874.95/74,651.69
  6. Step 6: Final answer
    x = 56,742.41

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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.