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Finding the Fourth Proportional to 61,017.49, 91,384.08 and 59,335.78

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Solution

The fourth proportional to 61,017.49, 91,384.08 and 59,335.78 is: 88,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,017.49 : 91,384.08 = 59,335.78 : x
  2. Step 2: Convert to fraction form
    61,017.49/91,384.08 = 59,335.78/x
  3. Step 3: Cross multiply
    61,017.49x = 91,384.08 × 59,335.78
  4. Step 4: Simplify right side
    61,017.49x = 5,422,345,044.07
  5. Step 5: Solve for x
    x = 5,422,345,044.07/61,017.49
  6. Step 6: Final answer
    x = 88,865.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.