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Finding the Fourth Proportional to 208,263, 312,406.62 and 58,514.96

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Solution

The fourth proportional to 208,263, 312,406.62 and 58,514.96 is: 87,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,263 : 312,406.62 = 58,514.96 : x
  2. Step 2: Convert to fraction form
    208,263/312,406.62 = 58,514.96/x
  3. Step 3: Cross multiply
    208,263x = 312,406.62 × 58,514.96
  4. Step 4: Simplify right side
    208,263x = 18,280,460,873.04
  5. Step 5: Solve for x
    x = 18,280,460,873.04/208,263
  6. Step 6: Final answer
    x = 87,775.85

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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.