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Finding the Fourth Proportional to 183,422.90, 253,144.69 and 122,165.71

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Solution

The fourth proportional to 183,422.90, 253,144.69 and 122,165.71 is: 168,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,422.90 : 253,144.69 = 122,165.71 : x
  2. Step 2: Convert to fraction form
    183,422.90/253,144.69 = 122,165.71/x
  3. Step 3: Cross multiply
    183,422.90x = 253,144.69 × 122,165.71
  4. Step 4: Simplify right side
    183,422.90x = 30,925,599,848.30
  5. Step 5: Solve for x
    x = 30,925,599,848.30/183,422.90
  6. Step 6: Final answer
    x = 168,602.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.