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Finding the Fourth Proportional to 70,274.97, 96,977.75 and 43,061.65

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Solution

The fourth proportional to 70,274.97, 96,977.75 and 43,061.65 is: 59,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,274.97 : 96,977.75 = 43,061.65 : x
  2. Step 2: Convert to fraction form
    70,274.97/96,977.75 = 43,061.65/x
  3. Step 3: Cross multiply
    70,274.97x = 96,977.75 × 43,061.65
  4. Step 4: Simplify right side
    70,274.97x = 4,176,021,470.53
  5. Step 5: Solve for x
    x = 4,176,021,470.53/70,274.97
  6. Step 6: Final answer
    x = 59,424.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.