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Finding the Fourth Proportional to 277,576.61, 383,055.89 and 156,718.13

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Solution

The fourth proportional to 277,576.61, 383,055.89 and 156,718.13 is: 216,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,576.61 : 383,055.89 = 156,718.13 : x
  2. Step 2: Convert to fraction form
    277,576.61/383,055.89 = 156,718.13/x
  3. Step 3: Cross multiply
    277,576.61x = 383,055.89 × 156,718.13
  4. Step 4: Simplify right side
    277,576.61x = 60,031,800,067.42
  5. Step 5: Solve for x
    x = 60,031,800,067.42/277,576.61
  6. Step 6: Final answer
    x = 216,271.11

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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.