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Finding the Fourth Proportional to 276,687.36, 415,029.60 and 176,598.72

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Solution

The fourth proportional to 276,687.36, 415,029.60 and 176,598.72 is: 264,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,687.36 : 415,029.60 = 176,598.72 : x
  2. Step 2: Convert to fraction form
    276,687.36/415,029.60 = 176,598.72/x
  3. Step 3: Cross multiply
    276,687.36x = 415,029.60 × 176,598.72
  4. Step 4: Simplify right side
    276,687.36x = 73,293,696,122.11
  5. Step 5: Solve for x
    x = 73,293,696,122.11/276,687.36
  6. Step 6: Final answer
    x = 264,897.16

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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.