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Finding the Fourth Proportional to 136,804.84, 205,228.86 and 52,561.64

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Solution

The fourth proportional to 136,804.84, 205,228.86 and 52,561.64 is: 78,850.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,804.84 : 205,228.86 = 52,561.64 : x
  2. Step 2: Convert to fraction form
    136,804.84/205,228.86 = 52,561.64/x
  3. Step 3: Cross multiply
    136,804.84x = 205,228.86 × 52,561.64
  4. Step 4: Simplify right side
    136,804.84x = 10,787,165,456.93
  5. Step 5: Solve for x
    x = 10,787,165,456.93/136,804.84
  6. Step 6: Final answer
    x = 78,850.76

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1.5x scale

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.