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Finding the Fourth Proportional to 211,702.74, 317,483.64 and 61,951.56

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Solution

The fourth proportional to 211,702.74, 317,483.64 and 61,951.56 is: 92,906.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,702.74 : 317,483.64 = 61,951.56 : x
  2. Step 2: Convert to fraction form
    211,702.74/317,483.64 = 61,951.56/x
  3. Step 3: Cross multiply
    211,702.74x = 317,483.64 × 61,951.56
  4. Step 4: Simplify right side
    211,702.74x = 19,668,606,772.48
  5. Step 5: Solve for x
    x = 19,668,606,772.48/211,702.74
  6. Step 6: Final answer
    x = 92,906.72

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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.