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Finding the Fourth Proportional to 122,472, 183,751.74 and 60,186.24

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Solution

The fourth proportional to 122,472, 183,751.74 and 60,186.24 is: 90,300.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,472 : 183,751.74 = 60,186.24 : x
  2. Step 2: Convert to fraction form
    122,472/183,751.74 = 60,186.24/x
  3. Step 3: Cross multiply
    122,472x = 183,751.74 × 60,186.24
  4. Step 4: Simplify right side
    122,472x = 11,059,326,324.06
  5. Step 5: Solve for x
    x = 11,059,326,324.06/122,472
  6. Step 6: Final answer
    x = 90,300.86

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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.