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Finding the Fourth Proportional to 578,818.56, 868,110.72 and 158,059.20

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Solution

The fourth proportional to 578,818.56, 868,110.72 and 158,059.20 is: 237,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,818.56 : 868,110.72 = 158,059.20 : x
  2. Step 2: Convert to fraction form
    578,818.56/868,110.72 = 158,059.20/x
  3. Step 3: Cross multiply
    578,818.56x = 868,110.72 × 158,059.20
  4. Step 4: Simplify right side
    578,818.56x = 137,212,885,914.62
  5. Step 5: Solve for x
    x = 137,212,885,914.62/578,818.56
  6. Step 6: Final answer
    x = 237,056.82

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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.