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Finding the Fourth Proportional to 58,667.75, 87,858.10 and 52,981.56

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Solution

The fourth proportional to 58,667.75, 87,858.10 and 52,981.56 is: 79,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,667.75 : 87,858.10 = 52,981.56 : x
  2. Step 2: Convert to fraction form
    58,667.75/87,858.10 = 52,981.56/x
  3. Step 3: Cross multiply
    58,667.75x = 87,858.10 × 52,981.56
  4. Step 4: Simplify right side
    58,667.75x = 4,654,859,196.64
  5. Step 5: Solve for x
    x = 4,654,859,196.64/58,667.75
  6. Step 6: Final answer
    x = 79,342.73

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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.