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Finding the Fourth Proportional to 164,759.76, 247,140.95 and 107,881.61

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Solution

The fourth proportional to 164,759.76, 247,140.95 and 107,881.61 is: 161,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,759.76 : 247,140.95 = 107,881.61 : x
  2. Step 2: Convert to fraction form
    164,759.76/247,140.95 = 107,881.61/x
  3. Step 3: Cross multiply
    164,759.76x = 247,140.95 × 107,881.61
  4. Step 4: Simplify right side
    164,759.76x = 26,661,961,807.82
  5. Step 5: Solve for x
    x = 26,661,961,807.82/164,759.76
  6. Step 6: Final answer
    x = 161,823.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.