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Finding the Fourth Proportional to 70,794.60, 106,278.30 and 70,276.20

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Solution

The fourth proportional to 70,794.60, 106,278.30 and 70,276.20 is: 105,500.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,794.60 : 106,278.30 = 70,276.20 : x
  2. Step 2: Convert to fraction form
    70,794.60/106,278.30 = 70,276.20/x
  3. Step 3: Cross multiply
    70,794.60x = 106,278.30 × 70,276.20
  4. Step 4: Simplify right side
    70,794.60x = 7,468,835,066.46
  5. Step 5: Solve for x
    x = 7,468,835,066.46/70,794.60
  6. Step 6: Final answer
    x = 105,500.07

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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.