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Finding the Fourth Proportional to 235,712.77, 353,580.83 and 67,257.91

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Solution

The fourth proportional to 235,712.77, 353,580.83 and 67,257.91 is: 100,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,712.77 : 353,580.83 = 67,257.91 : x
  2. Step 2: Convert to fraction form
    235,712.77/353,580.83 = 67,257.91/x
  3. Step 3: Cross multiply
    235,712.77x = 353,580.83 × 67,257.91
  4. Step 4: Simplify right side
    235,712.77x = 23,781,106,292.89
  5. Step 5: Solve for x
    x = 23,781,106,292.89/235,712.77
  6. Step 6: Final answer
    x = 100,890.19

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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.