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Finding the Fourth Proportional to 131,025.93, 196,538.91 and 86,934.39

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Solution

The fourth proportional to 131,025.93, 196,538.91 and 86,934.39 is: 130,401.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,025.93 : 196,538.91 = 86,934.39 : x
  2. Step 2: Convert to fraction form
    131,025.93/196,538.91 = 86,934.39/x
  3. Step 3: Cross multiply
    131,025.93x = 196,538.91 × 86,934.39
  4. Step 4: Simplify right side
    131,025.93x = 17,085,990,252.11
  5. Step 5: Solve for x
    x = 17,085,990,252.11/131,025.93
  6. Step 6: Final answer
    x = 130,401.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.