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Finding the Fourth Proportional to 273,287.72, 377,137.72 and 152,436.84

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Solution

The fourth proportional to 273,287.72, 377,137.72 and 152,436.84 is: 210,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,287.72 : 377,137.72 = 152,436.84 : x
  2. Step 2: Convert to fraction form
    273,287.72/377,137.72 = 152,436.84/x
  3. Step 3: Cross multiply
    273,287.72x = 377,137.72 × 152,436.84
  4. Step 4: Simplify right side
    273,287.72x = 57,489,681,479.20
  5. Step 5: Solve for x
    x = 57,489,681,479.20/273,287.72
  6. Step 6: Final answer
    x = 210,363.20

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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.