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Finding the Fourth Proportional to 122,137.65, 183,200.40 and 62,979.30

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Solution

The fourth proportional to 122,137.65, 183,200.40 and 62,979.30 is: 94,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,137.65 : 183,200.40 = 62,979.30 : x
  2. Step 2: Convert to fraction form
    122,137.65/183,200.40 = 62,979.30/x
  3. Step 3: Cross multiply
    122,137.65x = 183,200.40 × 62,979.30
  4. Step 4: Simplify right side
    122,137.65x = 11,537,832,951.72
  5. Step 5: Solve for x
    x = 11,537,832,951.72/122,137.65
  6. Step 6: Final answer
    x = 94,465.82

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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.