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Finding the Fourth Proportional to 169,283.22, 253,956.96 and 68,089.02

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Solution

The fourth proportional to 169,283.22, 253,956.96 and 68,089.02 is: 102,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,283.22 : 253,956.96 = 68,089.02 : x
  2. Step 2: Convert to fraction form
    169,283.22/253,956.96 = 68,089.02/x
  3. Step 3: Cross multiply
    169,283.22x = 253,956.96 × 68,089.02
  4. Step 4: Simplify right side
    169,283.22x = 17,291,680,528.58
  5. Step 5: Solve for x
    x = 17,291,680,528.58/169,283.22
  6. Step 6: Final answer
    x = 102,146.45

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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.