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Finding the Fourth Proportional to 136,935.75, 205,429.56 and 63,063.75

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Solution

The fourth proportional to 136,935.75, 205,429.56 and 63,063.75 is: 94,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935.75 : 205,429.56 = 63,063.75 : x
  2. Step 2: Convert to fraction form
    136,935.75/205,429.56 = 63,063.75/x
  3. Step 3: Cross multiply
    136,935.75x = 205,429.56 × 63,063.75
  4. Step 4: Simplify right side
    136,935.75x = 12,955,158,414.45
  5. Step 5: Solve for x
    x = 12,955,158,414.45/136,935.75
  6. Step 6: Final answer
    x = 94,607.57

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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.