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Finding the Fourth Proportional to 165,841.60, 248,616.60 and 99,308.20

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Solution

The fourth proportional to 165,841.60, 248,616.60 and 99,308.20 is: 148,874.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,841.60 : 248,616.60 = 99,308.20 : x
  2. Step 2: Convert to fraction form
    165,841.60/248,616.60 = 99,308.20/x
  3. Step 3: Cross multiply
    165,841.60x = 248,616.60 × 99,308.20
  4. Step 4: Simplify right side
    165,841.60x = 24,689,667,036.12
  5. Step 5: Solve for x
    x = 24,689,667,036.12/165,841.60
  6. Step 6: Final answer
    x = 148,874.99

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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.