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Finding the Fourth Proportional to 136,628.88, 204,883.12 and 61,746.00

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Solution

The fourth proportional to 136,628.88, 204,883.12 and 61,746.00 is: 92,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,628.88 : 204,883.12 = 61,746.00 : x
  2. Step 2: Convert to fraction form
    136,628.88/204,883.12 = 61,746.00/x
  3. Step 3: Cross multiply
    136,628.88x = 204,883.12 × 61,746.00
  4. Step 4: Simplify right side
    136,628.88x = 12,650,712,436.39
  5. Step 5: Solve for x
    x = 12,650,712,436.39/136,628.88
  6. Step 6: Final answer
    x = 92,591.79

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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.