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Finding the Fourth Proportional to 154,993.92, 212,494.08 and 152,194.56

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Solution

The fourth proportional to 154,993.92, 212,494.08 and 152,194.56 is: 208,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,993.92 : 212,494.08 = 152,194.56 : x
  2. Step 2: Convert to fraction form
    154,993.92/212,494.08 = 152,194.56/x
  3. Step 3: Cross multiply
    154,993.92x = 212,494.08 × 152,194.56
  4. Step 4: Simplify right side
    154,993.92x = 32,340,443,008.20
  5. Step 5: Solve for x
    x = 32,340,443,008.20/154,993.92
  6. Step 6: Final answer
    x = 208,656.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.