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Finding the Fourth Proportional to 99,352.66, 137,104.77 and 54,640.66

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Solution

The fourth proportional to 99,352.66, 137,104.77 and 54,640.66 is: 75,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,352.66 : 137,104.77 = 54,640.66 : x
  2. Step 2: Convert to fraction form
    99,352.66/137,104.77 = 54,640.66/x
  3. Step 3: Cross multiply
    99,352.66x = 137,104.77 × 54,640.66
  4. Step 4: Simplify right side
    99,352.66x = 7,491,495,121.95
  5. Step 5: Solve for x
    x = 7,491,495,121.95/99,352.66
  6. Step 6: Final answer
    x = 75,403.07

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1.5x scale

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.