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Finding the Fourth Proportional to 270,015.20, 404,698.80 and 112,162.40

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Solution

The fourth proportional to 270,015.20, 404,698.80 and 112,162.40 is: 168,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,015.20 : 404,698.80 = 112,162.40 : x
  2. Step 2: Convert to fraction form
    270,015.20/404,698.80 = 112,162.40/x
  3. Step 3: Cross multiply
    270,015.20x = 404,698.80 × 112,162.40
  4. Step 4: Simplify right side
    270,015.20x = 45,391,988,685.12
  5. Step 5: Solve for x
    x = 45,391,988,685.12/270,015.20
  6. Step 6: Final answer
    x = 168,109.01

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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.