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Finding the Fourth Proportional to 70,974.59, 106,240.43 and 52,275.74

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Solution

The fourth proportional to 70,974.59, 106,240.43 and 52,275.74 is: 78,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,974.59 : 106,240.43 = 52,275.74 : x
  2. Step 2: Convert to fraction form
    70,974.59/106,240.43 = 52,275.74/x
  3. Step 3: Cross multiply
    70,974.59x = 106,240.43 × 52,275.74
  4. Step 4: Simplify right side
    70,974.59x = 5,553,796,303.59
  5. Step 5: Solve for x
    x = 5,553,796,303.59/70,974.59
  6. Step 6: Final answer
    x = 78,250.49

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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.