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Finding the Fourth Proportional to 88,262.86, 121,803.48 and 47,976.62

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Solution

The fourth proportional to 88,262.86, 121,803.48 and 47,976.62 is: 66,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,262.86 : 121,803.48 = 47,976.62 : x
  2. Step 2: Convert to fraction form
    88,262.86/121,803.48 = 47,976.62/x
  3. Step 3: Cross multiply
    88,262.86x = 121,803.48 × 47,976.62
  4. Step 4: Simplify right side
    88,262.86x = 5,843,718,665.62
  5. Step 5: Solve for x
    x = 5,843,718,665.62/88,262.86
  6. Step 6: Final answer
    x = 66,208.13

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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.