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Finding the Fourth Proportional to 99,811.44, 148,608.72 and 98,416.44

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Solution

The fourth proportional to 99,811.44, 148,608.72 and 98,416.44 is: 146,531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.44 : 148,608.72 = 98,416.44 : x
  2. Step 2: Convert to fraction form
    99,811.44/148,608.72 = 98,416.44/x
  3. Step 3: Cross multiply
    99,811.44x = 148,608.72 × 98,416.44
  4. Step 4: Simplify right side
    99,811.44x = 14,625,541,175.36
  5. Step 5: Solve for x
    x = 14,625,541,175.36/99,811.44
  6. Step 6: Final answer
    x = 146,531.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.