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Finding the Fourth Proportional to 98,998.60, 148,497.90 and 88,976.20

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Solution

The fourth proportional to 98,998.60, 148,497.90 and 88,976.20 is: 133,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,998.60 : 148,497.90 = 88,976.20 : x
  2. Step 2: Convert to fraction form
    98,998.60/148,497.90 = 88,976.20/x
  3. Step 3: Cross multiply
    98,998.60x = 148,497.90 × 88,976.20
  4. Step 4: Simplify right side
    98,998.60x = 13,212,778,849.98
  5. Step 5: Solve for x
    x = 13,212,778,849.98/98,998.60
  6. Step 6: Final answer
    x = 133,464.30

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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.