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Finding the Fourth Proportional to 98,552.70, 136,015.34 and 64,589.94

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Solution

The fourth proportional to 98,552.70, 136,015.34 and 64,589.94 is: 89,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,552.70 : 136,015.34 = 64,589.94 : x
  2. Step 2: Convert to fraction form
    98,552.70/136,015.34 = 64,589.94/x
  3. Step 3: Cross multiply
    98,552.70x = 136,015.34 × 64,589.94
  4. Step 4: Simplify right side
    98,552.70x = 8,785,222,326.73
  5. Step 5: Solve for x
    x = 8,785,222,326.73/98,552.70
  6. Step 6: Final answer
    x = 89,142.38

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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.