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Finding the Fourth Proportional to 86,894.91, 119,911.65 and 48,650.88

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Solution

The fourth proportional to 86,894.91, 119,911.65 and 48,650.88 is: 67,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,894.91 : 119,911.65 = 48,650.88 : x
  2. Step 2: Convert to fraction form
    86,894.91/119,911.65 = 48,650.88/x
  3. Step 3: Cross multiply
    86,894.91x = 119,911.65 × 48,650.88
  4. Step 4: Simplify right side
    86,894.91x = 5,833,807,294.75
  5. Step 5: Solve for x
    x = 5,833,807,294.75/86,894.91
  6. Step 6: Final answer
    x = 67,136.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.