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Finding the Fourth Proportional to 165,700.80, 248,065.20 and 148,600.08

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Solution

The fourth proportional to 165,700.80, 248,065.20 and 148,600.08 is: 222,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,700.80 : 248,065.20 = 148,600.08 : x
  2. Step 2: Convert to fraction form
    165,700.80/248,065.20 = 148,600.08/x
  3. Step 3: Cross multiply
    165,700.80x = 248,065.20 × 148,600.08
  4. Step 4: Simplify right side
    165,700.80x = 36,862,508,565.22
  5. Step 5: Solve for x
    x = 36,862,508,565.22/165,700.80
  6. Step 6: Final answer
    x = 222,464.28

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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.