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Finding the Fourth Proportional to 74,651.52, 103,019.08 and 41,117.52

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Solution

The fourth proportional to 74,651.52, 103,019.08 and 41,117.52 is: 56,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,651.52 : 103,019.08 = 41,117.52 : x
  2. Step 2: Convert to fraction form
    74,651.52/103,019.08 = 41,117.52/x
  3. Step 3: Cross multiply
    74,651.52x = 103,019.08 × 41,117.52
  4. Step 4: Simplify right side
    74,651.52x = 4,235,889,082.28
  5. Step 5: Solve for x
    x = 4,235,889,082.28/74,651.52
  6. Step 6: Final answer
    x = 56,742.17

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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.