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Finding the Fourth Proportional to 96,315.76, 133,042.76 and 73,931.37

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Solution

The fourth proportional to 96,315.76, 133,042.76 and 73,931.37 is: 102,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,315.76 : 133,042.76 = 73,931.37 : x
  2. Step 2: Convert to fraction form
    96,315.76/133,042.76 = 73,931.37/x
  3. Step 3: Cross multiply
    96,315.76x = 133,042.76 × 73,931.37
  4. Step 4: Simplify right side
    96,315.76x = 9,836,033,515.38
  5. Step 5: Solve for x
    x = 9,836,033,515.38/96,315.76
  6. Step 6: Final answer
    x = 102,122.78

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1.5x scale

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.