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Finding the Fourth Proportional to 136,238.77, 204,355.77 and 61,305.88

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Solution

The fourth proportional to 136,238.77, 204,355.77 and 61,305.88 is: 91,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,238.77 : 204,355.77 = 61,305.88 : x
  2. Step 2: Convert to fraction form
    136,238.77/204,355.77 = 61,305.88/x
  3. Step 3: Cross multiply
    136,238.77x = 204,355.77 × 61,305.88
  4. Step 4: Simplify right side
    136,238.77x = 12,528,210,312.93
  5. Step 5: Solve for x
    x = 12,528,210,312.93/136,238.77
  6. Step 6: Final answer
    x = 91,957.75

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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.