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Finding the Fourth Proportional to 169,599.86, 254,455.06 and 85,316.52

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Solution

The fourth proportional to 169,599.86, 254,455.06 and 85,316.52 is: 128,002.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,599.86 : 254,455.06 = 85,316.52 : x
  2. Step 2: Convert to fraction form
    169,599.86/254,455.06 = 85,316.52/x
  3. Step 3: Cross multiply
    169,599.86x = 254,455.06 × 85,316.52
  4. Step 4: Simplify right side
    169,599.86x = 21,709,220,002.30
  5. Step 5: Solve for x
    x = 21,709,220,002.30/169,599.86
  6. Step 6: Final answer
    x = 128,002.59

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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.