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Finding the Fourth Proportional to 136,607.76, 204,936.32 and 61,763.15

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Solution

The fourth proportional to 136,607.76, 204,936.32 and 61,763.15 is: 92,655.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,607.76 : 204,936.32 = 61,763.15 : x
  2. Step 2: Convert to fraction form
    136,607.76/204,936.32 = 61,763.15/x
  3. Step 3: Cross multiply
    136,607.76x = 204,936.32 × 61,763.15
  4. Step 4: Simplify right side
    136,607.76x = 12,657,513,339.36
  5. Step 5: Solve for x
    x = 12,657,513,339.36/136,607.76
  6. Step 6: Final answer
    x = 92,655.89

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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.