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Finding the Fourth Proportional to 98,375.76, 135,758.68 and 53,663.76

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Solution

The fourth proportional to 98,375.76, 135,758.68 and 53,663.76 is: 74,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,375.76 : 135,758.68 = 53,663.76 : x
  2. Step 2: Convert to fraction form
    98,375.76/135,758.68 = 53,663.76/x
  3. Step 3: Cross multiply
    98,375.76x = 135,758.68 × 53,663.76
  4. Step 4: Simplify right side
    98,375.76x = 7,285,321,221.44
  5. Step 5: Solve for x
    x = 7,285,321,221.44/98,375.76
  6. Step 6: Final answer
    x = 74,056.06

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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.