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Finding the Fourth Proportional to 342,179.32, 513,260.34 and 92,854.84

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Solution

The fourth proportional to 342,179.32, 513,260.34 and 92,854.84 is: 139,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,179.32 : 513,260.34 = 92,854.84 : x
  2. Step 2: Convert to fraction form
    342,179.32/513,260.34 = 92,854.84/x
  3. Step 3: Cross multiply
    342,179.32x = 513,260.34 × 92,854.84
  4. Step 4: Simplify right side
    342,179.32x = 47,658,706,749.05
  5. Step 5: Solve for x
    x = 47,658,706,749.05/342,179.32
  6. Step 6: Final answer
    x = 139,279.92

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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.