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Finding the Fourth Proportional to 115,072.69, 158,800.33 and 67,335.20

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Solution

The fourth proportional to 115,072.69, 158,800.33 and 67,335.20 is: 92,922.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,072.69 : 158,800.33 = 67,335.20 : x
  2. Step 2: Convert to fraction form
    115,072.69/158,800.33 = 67,335.20/x
  3. Step 3: Cross multiply
    115,072.69x = 158,800.33 × 67,335.20
  4. Step 4: Simplify right side
    115,072.69x = 10,692,852,461.79
  5. Step 5: Solve for x
    x = 10,692,852,461.79/115,072.69
  6. Step 6: Final answer
    x = 92,922.59

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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.