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Finding the Fourth Proportional to 88,953.76, 122,739.96 and 50,711.68

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Solution

The fourth proportional to 88,953.76, 122,739.96 and 50,711.68 is: 69,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,953.76 : 122,739.96 = 50,711.68 : x
  2. Step 2: Convert to fraction form
    88,953.76/122,739.96 = 50,711.68/x
  3. Step 3: Cross multiply
    88,953.76x = 122,739.96 × 50,711.68
  4. Step 4: Simplify right side
    88,953.76x = 6,224,349,574.73
  5. Step 5: Solve for x
    x = 6,224,349,574.73/88,953.76
  6. Step 6: Final answer
    x = 69,972.87

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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.