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Finding the Fourth Proportional to 115,654.94, 159,585.69 and 67,267.58

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Solution

The fourth proportional to 115,654.94, 159,585.69 and 67,267.58 is: 92,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,654.94 : 159,585.69 = 67,267.58 : x
  2. Step 2: Convert to fraction form
    115,654.94/159,585.69 = 67,267.58/x
  3. Step 3: Cross multiply
    115,654.94x = 159,585.69 × 67,267.58
  4. Step 4: Simplify right side
    115,654.94x = 10,734,943,168.93
  5. Step 5: Solve for x
    x = 10,734,943,168.93/115,654.94
  6. Step 6: Final answer
    x = 92,818.72

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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.