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Finding the Fourth Proportional to 219,609.54, 329,436.72 and 59,688

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Solution

The fourth proportional to 219,609.54, 329,436.72 and 59,688 is: 89,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,609.54 : 329,436.72 = 59,688 : x
  2. Step 2: Convert to fraction form
    219,609.54/329,436.72 = 59,688/x
  3. Step 3: Cross multiply
    219,609.54x = 329,436.72 × 59,688
  4. Step 4: Simplify right side
    219,609.54x = 19,663,418,943.36
  5. Step 5: Solve for x
    x = 19,663,418,943.36/219,609.54
  6. Step 6: Final answer
    x = 89,538.09

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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.