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Finding the Fourth Proportional to 195,753.40, 293,630.10 and 71,078.20

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Solution

The fourth proportional to 195,753.40, 293,630.10 and 71,078.20 is: 106,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,753.40 : 293,630.10 = 71,078.20 : x
  2. Step 2: Convert to fraction form
    195,753.40/293,630.10 = 71,078.20/x
  3. Step 3: Cross multiply
    195,753.40x = 293,630.10 × 71,078.20
  4. Step 4: Simplify right side
    195,753.40x = 20,870,698,973.82
  5. Step 5: Solve for x
    x = 20,870,698,973.82/195,753.40
  6. Step 6: Final answer
    x = 106,617.30

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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.