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Finding the Fourth Proportional to 280,158.75, 386,619.08 and 179,556.75

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Solution

The fourth proportional to 280,158.75, 386,619.08 and 179,556.75 is: 247,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,158.75 : 386,619.08 = 179,556.75 : x
  2. Step 2: Convert to fraction form
    280,158.75/386,619.08 = 179,556.75/x
  3. Step 3: Cross multiply
    280,158.75x = 386,619.08 × 179,556.75
  4. Step 4: Simplify right side
    280,158.75x = 69,420,064,595.01
  5. Step 5: Solve for x
    x = 69,420,064,595.01/280,158.75
  6. Step 6: Final answer
    x = 247,788.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.