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Finding the Fourth Proportional to 219,319.55, 329,010.71 and 67,529.48

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Solution

The fourth proportional to 219,319.55, 329,010.71 and 67,529.48 is: 101,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,319.55 : 329,010.71 = 67,529.48 : x
  2. Step 2: Convert to fraction form
    219,319.55/329,010.71 = 67,529.48/x
  3. Step 3: Cross multiply
    219,319.55x = 329,010.71 × 67,529.48
  4. Step 4: Simplify right side
    219,319.55x = 22,217,920,178.03
  5. Step 5: Solve for x
    x = 22,217,920,178.03/219,319.55
  6. Step 6: Final answer
    x = 101,303.87

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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.