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Finding the Fourth Proportional to 86,762.83, 119,731.86 and 48,521.95

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Solution

The fourth proportional to 86,762.83, 119,731.86 and 48,521.95 is: 66,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,762.83 : 119,731.86 = 48,521.95 : x
  2. Step 2: Convert to fraction form
    86,762.83/119,731.86 = 48,521.95/x
  3. Step 3: Cross multiply
    86,762.83x = 119,731.86 × 48,521.95
  4. Step 4: Simplify right side
    86,762.83x = 5,809,623,324.33
  5. Step 5: Solve for x
    x = 5,809,623,324.33/86,762.83
  6. Step 6: Final answer
    x = 66,959.82

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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.