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Finding the Fourth Proportional to 219,408, 329,113.08 and 53,196

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Solution

The fourth proportional to 219,408, 329,113.08 and 53,196 is: 79,794.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,408 : 329,113.08 = 53,196 : x
  2. Step 2: Convert to fraction form
    219,408/329,113.08 = 53,196/x
  3. Step 3: Cross multiply
    219,408x = 329,113.08 × 53,196
  4. Step 4: Simplify right side
    219,408x = 17,507,499,403.68
  5. Step 5: Solve for x
    x = 17,507,499,403.68/219,408
  6. Step 6: Final answer
    x = 79,794.26

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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.