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Finding the Fourth Proportional to 98,799.98, 148,199.73 and 76,343.30

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Solution

The fourth proportional to 98,799.98, 148,199.73 and 76,343.30 is: 114,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,799.98 : 148,199.73 = 76,343.30 : x
  2. Step 2: Convert to fraction form
    98,799.98/148,199.73 = 76,343.30/x
  3. Step 3: Cross multiply
    98,799.98x = 148,199.73 × 76,343.30
  4. Step 4: Simplify right side
    98,799.98x = 11,314,055,706.31
  5. Step 5: Solve for x
    x = 11,314,055,706.31/98,799.98
  6. Step 6: Final answer
    x = 114,514.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.