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Finding the Fourth Proportional to 477,278.33, 715,868.28 and 161,727.03

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Solution

The fourth proportional to 477,278.33, 715,868.28 and 161,727.03 is: 242,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,278.33 : 715,868.28 = 161,727.03 : x
  2. Step 2: Convert to fraction form
    477,278.33/715,868.28 = 161,727.03/x
  3. Step 3: Cross multiply
    477,278.33x = 715,868.28 × 161,727.03
  4. Step 4: Simplify right side
    477,278.33x = 115,775,250,795.61
  5. Step 5: Solve for x
    x = 115,775,250,795.61/477,278.33
  6. Step 6: Final answer
    x = 242,573.87

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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.