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Finding the Fourth Proportional to 219,224.52, 328,848.12 and 69,480.72

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Solution

The fourth proportional to 219,224.52, 328,848.12 and 69,480.72 is: 104,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,224.52 : 328,848.12 = 69,480.72 : x
  2. Step 2: Convert to fraction form
    219,224.52/328,848.12 = 69,480.72/x
  3. Step 3: Cross multiply
    219,224.52x = 328,848.12 × 69,480.72
  4. Step 4: Simplify right side
    219,224.52x = 22,848,604,148.25
  5. Step 5: Solve for x
    x = 22,848,604,148.25/219,224.52
  6. Step 6: Final answer
    x = 104,224.67

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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.