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Finding the Fourth Proportional to 158,628.92, 237,894.78 and 53,419.64

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Solution

The fourth proportional to 158,628.92, 237,894.78 and 53,419.64 is: 80,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,628.92 : 237,894.78 = 53,419.64 : x
  2. Step 2: Convert to fraction form
    158,628.92/237,894.78 = 53,419.64/x
  3. Step 3: Cross multiply
    158,628.92x = 237,894.78 × 53,419.64
  4. Step 4: Simplify right side
    158,628.92x = 12,708,253,505.48
  5. Step 5: Solve for x
    x = 12,708,253,505.48/158,628.92
  6. Step 6: Final answer
    x = 80,113.09

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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.