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Finding the Fourth Proportional to 219,151.01, 328,928.56 and 111,156.17

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Solution

The fourth proportional to 219,151.01, 328,928.56 and 111,156.17 is: 166,836.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,151.01 : 328,928.56 = 111,156.17 : x
  2. Step 2: Convert to fraction form
    219,151.01/328,928.56 = 111,156.17/x
  3. Step 3: Cross multiply
    219,151.01x = 328,928.56 × 111,156.17
  4. Step 4: Simplify right side
    219,151.01x = 36,562,438,452.58
  5. Step 5: Solve for x
    x = 36,562,438,452.58/219,151.01
  6. Step 6: Final answer
    x = 166,836.74

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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.