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Finding the Fourth Proportional to 262,079.70, 392,925.15 and 112,197.30

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Solution

The fourth proportional to 262,079.70, 392,925.15 and 112,197.30 is: 168,212.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,079.70 : 392,925.15 = 112,197.30 : x
  2. Step 2: Convert to fraction form
    262,079.70/392,925.15 = 112,197.30/x
  3. Step 3: Cross multiply
    262,079.70x = 392,925.15 × 112,197.30
  4. Step 4: Simplify right side
    262,079.70x = 44,085,140,932.10
  5. Step 5: Solve for x
    x = 44,085,140,932.10/262,079.70
  6. Step 6: Final answer
    x = 168,212.73

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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.