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Finding the Fourth Proportional to 169,599.92, 254,455.16 and 85,316.58

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Solution

The fourth proportional to 169,599.92, 254,455.16 and 85,316.58 is: 128,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,599.92 : 254,455.16 = 85,316.58 : x
  2. Step 2: Convert to fraction form
    169,599.92/254,455.16 = 85,316.58/x
  3. Step 3: Cross multiply
    169,599.92x = 254,455.16 × 85,316.58
  4. Step 4: Simplify right side
    169,599.92x = 21,709,244,224.11
  5. Step 5: Solve for x
    x = 21,709,244,224.11/169,599.92
  6. Step 6: Final answer
    x = 128,002.68

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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.