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Finding the Fourth Proportional to 169,486.40, 254,229.60 and 141,838.40

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Solution

The fourth proportional to 169,486.40, 254,229.60 and 141,838.40 is: 212,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,486.40 : 254,229.60 = 141,838.40 : x
  2. Step 2: Convert to fraction form
    169,486.40/254,229.60 = 141,838.40/x
  3. Step 3: Cross multiply
    169,486.40x = 254,229.60 × 141,838.40
  4. Step 4: Simplify right side
    169,486.40x = 36,059,519,696.64
  5. Step 5: Solve for x
    x = 36,059,519,696.64/169,486.40
  6. Step 6: Final answer
    x = 212,757.60

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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.