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Finding the Fourth Proportional to 147,352.80, 221,029.20 and 131,023.20

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Solution

The fourth proportional to 147,352.80, 221,029.20 and 131,023.20 is: 196,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,352.80 : 221,029.20 = 131,023.20 : x
  2. Step 2: Convert to fraction form
    147,352.80/221,029.20 = 131,023.20/x
  3. Step 3: Cross multiply
    147,352.80x = 221,029.20 × 131,023.20
  4. Step 4: Simplify right side
    147,352.80x = 28,959,953,077.44
  5. Step 5: Solve for x
    x = 28,959,953,077.44/147,352.80
  6. Step 6: Final answer
    x = 196,534.80

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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.