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Finding the Fourth Proportional to 115,042.62, 158,707.58 and 67,274.90

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Solution

The fourth proportional to 115,042.62, 158,707.58 and 67,274.90 is: 92,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,042.62 : 158,707.58 = 67,274.90 : x
  2. Step 2: Convert to fraction form
    115,042.62/158,707.58 = 67,274.90/x
  3. Step 3: Cross multiply
    115,042.62x = 158,707.58 × 67,274.90
  4. Step 4: Simplify right side
    115,042.62x = 10,677,035,443.83
  5. Step 5: Solve for x
    x = 10,677,035,443.83/115,042.62
  6. Step 6: Final answer
    x = 92,809.39

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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.