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Finding the Fourth Proportional to 136,754.37, 205,087.22 and 45,545.49

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Solution

The fourth proportional to 136,754.37, 205,087.22 and 45,545.49 is: 68,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,754.37 : 205,087.22 = 45,545.49 : x
  2. Step 2: Convert to fraction form
    136,754.37/205,087.22 = 45,545.49/x
  3. Step 3: Cross multiply
    136,754.37x = 205,087.22 × 45,545.49
  4. Step 4: Simplify right side
    136,754.37x = 9,340,797,699.91
  5. Step 5: Solve for x
    x = 9,340,797,699.91/136,754.37
  6. Step 6: Final answer
    x = 68,303.47

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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.