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Finding the Fourth Proportional to 86,696.25, 119,650.56 and 48,972.93

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Solution

The fourth proportional to 86,696.25, 119,650.56 and 48,972.93 is: 67,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,696.25 : 119,650.56 = 48,972.93 : x
  2. Step 2: Convert to fraction form
    86,696.25/119,650.56 = 48,972.93/x
  3. Step 3: Cross multiply
    86,696.25x = 119,650.56 × 48,972.93
  4. Step 4: Simplify right side
    86,696.25x = 5,859,638,499.34
  5. Step 5: Solve for x
    x = 5,859,638,499.34/86,696.25
  6. Step 6: Final answer
    x = 67,588.14

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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.