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Finding the Fourth Proportional to 158,640.06, 237,981.93 and 53,489.10

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Solution

The fourth proportional to 158,640.06, 237,981.93 and 53,489.10 is: 80,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,640.06 : 237,981.93 = 53,489.10 : x
  2. Step 2: Convert to fraction form
    158,640.06/237,981.93 = 53,489.10/x
  3. Step 3: Cross multiply
    158,640.06x = 237,981.93 × 53,489.10
  4. Step 4: Simplify right side
    158,640.06x = 12,729,439,251.96
  5. Step 5: Solve for x
    x = 12,729,439,251.96/158,640.06
  6. Step 6: Final answer
    x = 80,241.01

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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.