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Finding the Fourth Proportional to 159,364.50, 219,923.01 and 88,708.50

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Solution

The fourth proportional to 159,364.50, 219,923.01 and 88,708.50 is: 122,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,364.50 : 219,923.01 = 88,708.50 : x
  2. Step 2: Convert to fraction form
    159,364.50/219,923.01 = 88,708.50/x
  3. Step 3: Cross multiply
    159,364.50x = 219,923.01 × 88,708.50
  4. Step 4: Simplify right side
    159,364.50x = 19,509,040,332.59
  5. Step 5: Solve for x
    x = 19,509,040,332.59/159,364.50
  6. Step 6: Final answer
    x = 122,417.73

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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.