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Finding the Fourth Proportional to 276,954.01, 415,501.01 and 77,274.28

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Solution

The fourth proportional to 276,954.01, 415,501.01 and 77,274.28 is: 115,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,954.01 : 415,501.01 = 77,274.28 : x
  2. Step 2: Convert to fraction form
    276,954.01/415,501.01 = 77,274.28/x
  3. Step 3: Cross multiply
    276,954.01x = 415,501.01 × 77,274.28
  4. Step 4: Simplify right side
    276,954.01x = 32,107,541,809.81
  5. Step 5: Solve for x
    x = 32,107,541,809.81/276,954.01
  6. Step 6: Final answer
    x = 115,930.95

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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.