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Finding the Fourth Proportional to 74,930.88, 103,404.48 and 43,098.96

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Solution

The fourth proportional to 74,930.88, 103,404.48 and 43,098.96 is: 59,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.88 : 103,404.48 = 43,098.96 : x
  2. Step 2: Convert to fraction form
    74,930.88/103,404.48 = 43,098.96/x
  3. Step 3: Cross multiply
    74,930.88x = 103,404.48 × 43,098.96
  4. Step 4: Simplify right side
    74,930.88x = 4,456,625,547.34
  5. Step 5: Solve for x
    x = 4,456,625,547.34/74,930.88
  6. Step 6: Final answer
    x = 59,476.49

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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.