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Finding the Fourth Proportional to 115,312.61, 159,134.61 and 67,567.97

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Solution

The fourth proportional to 115,312.61, 159,134.61 and 67,567.97 is: 93,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,312.61 : 159,134.61 = 67,567.97 : x
  2. Step 2: Convert to fraction form
    115,312.61/159,134.61 = 67,567.97/x
  3. Step 3: Cross multiply
    115,312.61x = 159,134.61 × 67,567.97
  4. Step 4: Simplify right side
    115,312.61x = 10,752,401,758.77
  5. Step 5: Solve for x
    x = 10,752,401,758.77/115,312.61
  6. Step 6: Final answer
    x = 93,245.68

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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.