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Finding the Fourth Proportional to 61,356.48, 84,671.52 and 34,860.48

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Solution

The fourth proportional to 61,356.48, 84,671.52 and 34,860.48 is: 48,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,356.48 : 84,671.52 = 34,860.48 : x
  2. Step 2: Convert to fraction form
    61,356.48/84,671.52 = 34,860.48/x
  3. Step 3: Cross multiply
    61,356.48x = 84,671.52 × 34,860.48
  4. Step 4: Simplify right side
    61,356.48x = 2,951,689,829.53
  5. Step 5: Solve for x
    x = 2,951,689,829.53/61,356.48
  6. Step 6: Final answer
    x = 48,107.22

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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.