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Finding the Fourth Proportional to 45,842.40, 68,763.60 and 34,178.40

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Solution

The fourth proportional to 45,842.40, 68,763.60 and 34,178.40 is: 51,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,842.40 : 68,763.60 = 34,178.40 : x
  2. Step 2: Convert to fraction form
    45,842.40/68,763.60 = 34,178.40/x
  3. Step 3: Cross multiply
    45,842.40x = 68,763.60 × 34,178.40
  4. Step 4: Simplify right side
    45,842.40x = 2,350,229,826.24
  5. Step 5: Solve for x
    x = 2,350,229,826.24/45,842.40
  6. Step 6: Final answer
    x = 51,267.60

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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.