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Finding the Fourth Proportional to 61,805.86, 92,708.75 and 58,650.42

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Solution

The fourth proportional to 61,805.86, 92,708.75 and 58,650.42 is: 87,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,805.86 : 92,708.75 = 58,650.42 : x
  2. Step 2: Convert to fraction form
    61,805.86/92,708.75 = 58,650.42/x
  3. Step 3: Cross multiply
    61,805.86x = 92,708.75 × 58,650.42
  4. Step 4: Simplify right side
    61,805.86x = 5,437,407,125.18
  5. Step 5: Solve for x
    x = 5,437,407,125.18/61,805.86
  6. Step 6: Final answer
    x = 87,975.60

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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.