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Finding the Fourth Proportional to 169,941.62, 254,763.39 and 64,690.58

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Solution

The fourth proportional to 169,941.62, 254,763.39 and 64,690.58 is: 96,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,941.62 : 254,763.39 = 64,690.58 : x
  2. Step 2: Convert to fraction form
    169,941.62/254,763.39 = 64,690.58/x
  3. Step 3: Cross multiply
    169,941.62x = 254,763.39 × 64,690.58
  4. Step 4: Simplify right side
    169,941.62x = 16,480,791,461.87
  5. Step 5: Solve for x
    x = 16,480,791,461.87/169,941.62
  6. Step 6: Final answer
    x = 96,979.14

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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.