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Finding the Fourth Proportional to 165,633.30, 248,449.95 and 113,145.30

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Solution

The fourth proportional to 165,633.30, 248,449.95 and 113,145.30 is: 169,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,633.30 : 248,449.95 = 113,145.30 : x
  2. Step 2: Convert to fraction form
    165,633.30/248,449.95 = 113,145.30/x
  3. Step 3: Cross multiply
    165,633.30x = 248,449.95 × 113,145.30
  4. Step 4: Simplify right side
    165,633.30x = 28,110,944,127.74
  5. Step 5: Solve for x
    x = 28,110,944,127.74/165,633.30
  6. Step 6: Final answer
    x = 169,717.95

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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.