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Finding the Fourth Proportional to 225,545.53, 311,252.82 and 123,574.85

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Solution

The fourth proportional to 225,545.53, 311,252.82 and 123,574.85 is: 170,533.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,545.53 : 311,252.82 = 123,574.85 : x
  2. Step 2: Convert to fraction form
    225,545.53/311,252.82 = 123,574.85/x
  3. Step 3: Cross multiply
    225,545.53x = 311,252.82 × 123,574.85
  4. Step 4: Simplify right side
    225,545.53x = 38,463,019,925.70
  5. Step 5: Solve for x
    x = 38,463,019,925.70/225,545.53
  6. Step 6: Final answer
    x = 170,533.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.