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Finding the Fourth Proportional to 60,630.58, 90,963.87 and 31,069.18

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Solution

The fourth proportional to 60,630.58, 90,963.87 and 31,069.18 is: 46,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,630.58 : 90,963.87 = 31,069.18 : x
  2. Step 2: Convert to fraction form
    60,630.58/90,963.87 = 31,069.18/x
  3. Step 3: Cross multiply
    60,630.58x = 90,963.87 × 31,069.18
  4. Step 4: Simplify right side
    60,630.58x = 2,826,172,850.53
  5. Step 5: Solve for x
    x = 2,826,172,850.53/60,630.58
  6. Step 6: Final answer
    x = 46,612.99

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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.