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Finding the Fourth Proportional to 558,693.36, 838,043.76 and 159,333.12

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Solution

The fourth proportional to 558,693.36, 838,043.76 and 159,333.12 is: 239,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,693.36 : 838,043.76 = 159,333.12 : x
  2. Step 2: Convert to fraction form
    558,693.36/838,043.76 = 159,333.12/x
  3. Step 3: Cross multiply
    558,693.36x = 838,043.76 × 159,333.12
  4. Step 4: Simplify right side
    558,693.36x = 133,528,126,977.33
  5. Step 5: Solve for x
    x = 133,528,126,977.33/558,693.36
  6. Step 6: Final answer
    x = 239,000.74

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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.