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Finding the Fourth Proportional to 276,484.11, 414,798.59 and 86,936.82

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Solution

The fourth proportional to 276,484.11, 414,798.59 and 86,936.82 is: 130,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,484.11 : 414,798.59 = 86,936.82 : x
  2. Step 2: Convert to fraction form
    276,484.11/414,798.59 = 86,936.82/x
  3. Step 3: Cross multiply
    276,484.11x = 414,798.59 × 86,936.82
  4. Step 4: Simplify right side
    276,484.11x = 36,061,270,355.08
  5. Step 5: Solve for x
    x = 36,061,270,355.08/276,484.11
  6. Step 6: Final answer
    x = 130,428.00

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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.