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Finding the Fourth Proportional to 208,621.84, 312,951.16 and 58,863.44

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Solution

The fourth proportional to 208,621.84, 312,951.16 and 58,863.44 is: 88,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,621.84 : 312,951.16 = 58,863.44 : x
  2. Step 2: Convert to fraction form
    208,621.84/312,951.16 = 58,863.44/x
  3. Step 3: Cross multiply
    208,621.84x = 312,951.16 × 58,863.44
  4. Step 4: Simplify right side
    208,621.84x = 18,421,381,829.59
  5. Step 5: Solve for x
    x = 18,421,381,829.59/208,621.84
  6. Step 6: Final answer
    x = 88,300.35

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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.