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Finding the Fourth Proportional to 273,130.81, 376,923.84 and 158,436.02

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Solution

The fourth proportional to 273,130.81, 376,923.84 and 158,436.02 is: 218,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,130.81 : 376,923.84 = 158,436.02 : x
  2. Step 2: Convert to fraction form
    273,130.81/376,923.84 = 158,436.02/x
  3. Step 3: Cross multiply
    273,130.81x = 376,923.84 × 158,436.02
  4. Step 4: Simplify right side
    273,130.81x = 59,718,313,052.72
  5. Step 5: Solve for x
    x = 59,718,313,052.72/273,130.81
  6. Step 6: Final answer
    x = 218,643.63

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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.