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Finding the Fourth Proportional to 119,154.24, 164,442.56 and 65,449.62

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Solution

The fourth proportional to 119,154.24, 164,442.56 and 65,449.62 is: 90,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,154.24 : 164,442.56 = 65,449.62 : x
  2. Step 2: Convert to fraction form
    119,154.24/164,442.56 = 65,449.62/x
  3. Step 3: Cross multiply
    119,154.24x = 164,442.56 × 65,449.62
  4. Step 4: Simplify right side
    119,154.24x = 10,762,702,736.58
  5. Step 5: Solve for x
    x = 10,762,702,736.58/119,154.24
  6. Step 6: Final answer
    x = 90,325.81

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1.5x scale

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.