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Finding the Fourth Proportional to 165,338.80, 248,008.20 and 98,983.60

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Solution

The fourth proportional to 165,338.80, 248,008.20 and 98,983.60 is: 148,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,338.80 : 248,008.20 = 98,983.60 : x
  2. Step 2: Convert to fraction form
    165,338.80/248,008.20 = 98,983.60/x
  3. Step 3: Cross multiply
    165,338.80x = 248,008.20 × 98,983.60
  4. Step 4: Simplify right side
    165,338.80x = 24,548,744,465.52
  5. Step 5: Solve for x
    x = 24,548,744,465.52/165,338.80
  6. Step 6: Final answer
    x = 148,475.40

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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.