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Finding the Fourth Proportional to 219,398.53, 329,110.53 and 61,639.27

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Solution

The fourth proportional to 219,398.53, 329,110.53 and 61,639.27 is: 92,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,398.53 : 329,110.53 = 61,639.27 : x
  2. Step 2: Convert to fraction form
    219,398.53/329,110.53 = 61,639.27/x
  3. Step 3: Cross multiply
    219,398.53x = 329,110.53 × 61,639.27
  4. Step 4: Simplify right side
    219,398.53x = 20,286,132,818.51
  5. Step 5: Solve for x
    x = 20,286,132,818.51/219,398.53
  6. Step 6: Final answer
    x = 92,462.48

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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.