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Finding the Fourth Proportional to 526,281.92, 789,472.72 and 147,202.72

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Solution

The fourth proportional to 526,281.92, 789,472.72 and 147,202.72 is: 220,818.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,281.92 : 789,472.72 = 147,202.72 : x
  2. Step 2: Convert to fraction form
    526,281.92/789,472.72 = 147,202.72/x
  3. Step 3: Cross multiply
    526,281.92x = 789,472.72 × 147,202.72
  4. Step 4: Simplify right side
    526,281.92x = 116,212,531,749.80
  5. Step 5: Solve for x
    x = 116,212,531,749.80/526,281.92
  6. Step 6: Final answer
    x = 220,818.02

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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.