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Finding the Fourth Proportional to 170,815.40, 256,223.10 and 92,083.40

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Solution

The fourth proportional to 170,815.40, 256,223.10 and 92,083.40 is: 138,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,815.40 : 256,223.10 = 92,083.40 : x
  2. Step 2: Convert to fraction form
    170,815.40/256,223.10 = 92,083.40/x
  3. Step 3: Cross multiply
    170,815.40x = 256,223.10 × 92,083.40
  4. Step 4: Simplify right side
    170,815.40x = 23,593,894,206.54
  5. Step 5: Solve for x
    x = 23,593,894,206.54/170,815.40
  6. Step 6: Final answer
    x = 138,125.10

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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.