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Finding the Fourth Proportional to 99,512.36, 137,323.88 and 59,216.88

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Solution

The fourth proportional to 99,512.36, 137,323.88 and 59,216.88 is: 81,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512.36 : 137,323.88 = 59,216.88 : x
  2. Step 2: Convert to fraction form
    99,512.36/137,323.88 = 59,216.88/x
  3. Step 3: Cross multiply
    99,512.36x = 137,323.88 × 59,216.88
  4. Step 4: Simplify right side
    99,512.36x = 8,131,891,427.01
  5. Step 5: Solve for x
    x = 8,131,891,427.01/99,512.36
  6. Step 6: Final answer
    x = 81,717.41

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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.