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Finding the Fourth Proportional to 208,703.92, 313,074.60 and 58,945.72

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Solution

The fourth proportional to 208,703.92, 313,074.60 and 58,945.72 is: 88,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,703.92 : 313,074.60 = 58,945.72 : x
  2. Step 2: Convert to fraction form
    208,703.92/313,074.60 = 58,945.72/x
  3. Step 3: Cross multiply
    208,703.92x = 313,074.60 × 58,945.72
  4. Step 4: Simplify right side
    208,703.92x = 18,454,407,710.71
  5. Step 5: Solve for x
    x = 18,454,407,710.71/208,703.92
  6. Step 6: Final answer
    x = 88,423.87

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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.