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Finding the Fourth Proportional to 159,981.64, 220,801.62 and 92,952.52

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Solution

The fourth proportional to 159,981.64, 220,801.62 and 92,952.52 is: 128,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,981.64 : 220,801.62 = 92,952.52 : x
  2. Step 2: Convert to fraction form
    159,981.64/220,801.62 = 92,952.52/x
  3. Step 3: Cross multiply
    159,981.64x = 220,801.62 × 92,952.52
  4. Step 4: Simplify right side
    159,981.64x = 20,524,066,999.08
  5. Step 5: Solve for x
    x = 20,524,066,999.08/159,981.64
  6. Step 6: Final answer
    x = 128,290.14

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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.