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Finding the Fourth Proportional to 122,500.78, 183,377.99 and 98,585.93

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Solution

The fourth proportional to 122,500.78, 183,377.99 and 98,585.93 is: 147,578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,500.78 : 183,377.99 = 98,585.93 : x
  2. Step 2: Convert to fraction form
    122,500.78/183,377.99 = 98,585.93/x
  3. Step 3: Cross multiply
    122,500.78x = 183,377.99 × 98,585.93
  4. Step 4: Simplify right side
    122,500.78x = 18,078,490,390.59
  5. Step 5: Solve for x
    x = 18,078,490,390.59/122,500.78
  6. Step 6: Final answer
    x = 147,578.58

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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.