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Finding the Fourth Proportional to 189,291.78, 260,691.14 and 185,158.35

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Solution

The fourth proportional to 189,291.78, 260,691.14 and 185,158.35 is: 254,998.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,291.78 : 260,691.14 = 185,158.35 : x
  2. Step 2: Convert to fraction form
    189,291.78/260,691.14 = 185,158.35/x
  3. Step 3: Cross multiply
    189,291.78x = 260,691.14 × 185,158.35
  4. Step 4: Simplify right side
    189,291.78x = 48,269,140,416.23
  5. Step 5: Solve for x
    x = 48,269,140,416.23/189,291.78
  6. Step 6: Final answer
    x = 254,998.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.