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Finding the Fourth Proportional to 74,663.87, 103,036.14 and 41,129.87

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Solution

The fourth proportional to 74,663.87, 103,036.14 and 41,129.87 is: 56,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,663.87 : 103,036.14 = 41,129.87 : x
  2. Step 2: Convert to fraction form
    74,663.87/103,036.14 = 41,129.87/x
  3. Step 3: Cross multiply
    74,663.87x = 103,036.14 × 41,129.87
  4. Step 4: Simplify right side
    74,663.87x = 4,237,862,528.32
  5. Step 5: Solve for x
    x = 4,237,862,528.32/74,663.87
  6. Step 6: Final answer
    x = 56,759.22

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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.