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Finding the Fourth Proportional to 60,963.60, 91,664.10 and 51,340.80

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Solution

The fourth proportional to 60,963.60, 91,664.10 and 51,340.80 is: 77,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,963.60 : 91,664.10 = 51,340.80 : x
  2. Step 2: Convert to fraction form
    60,963.60/91,664.10 = 51,340.80/x
  3. Step 3: Cross multiply
    60,963.60x = 91,664.10 × 51,340.80
  4. Step 4: Simplify right side
    60,963.60x = 4,706,108,225.28
  5. Step 5: Solve for x
    x = 4,706,108,225.28/60,963.60
  6. Step 6: Final answer
    x = 77,195.38

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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.