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Finding the Fourth Proportional to 122,310.30, 183,465.45 and 102,627.30

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Solution

The fourth proportional to 122,310.30, 183,465.45 and 102,627.30 is: 153,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,310.30 : 183,465.45 = 102,627.30 : x
  2. Step 2: Convert to fraction form
    122,310.30/183,465.45 = 102,627.30/x
  3. Step 3: Cross multiply
    122,310.30x = 183,465.45 × 102,627.30
  4. Step 4: Simplify right side
    122,310.30x = 18,828,563,776.79
  5. Step 5: Solve for x
    x = 18,828,563,776.79/122,310.30
  6. Step 6: Final answer
    x = 153,940.95

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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.