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Finding the Fourth Proportional to 61,107.76, 84,326.32 and 34,250.48

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Solution

The fourth proportional to 61,107.76, 84,326.32 and 34,250.48 is: 47,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,107.76 : 84,326.32 = 34,250.48 : x
  2. Step 2: Convert to fraction form
    61,107.76/84,326.32 = 34,250.48/x
  3. Step 3: Cross multiply
    61,107.76x = 84,326.32 × 34,250.48
  4. Step 4: Simplify right side
    61,107.76x = 2,888,216,936.63
  5. Step 5: Solve for x
    x = 2,888,216,936.63/61,107.76
  6. Step 6: Final answer
    x = 47,264.32

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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.