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Finding the Fourth Proportional to 219,888.90, 329,834.66 and 62,118.72

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Solution

The fourth proportional to 219,888.90, 329,834.66 and 62,118.72 is: 93,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,888.90 : 329,834.66 = 62,118.72 : x
  2. Step 2: Convert to fraction form
    219,888.90/329,834.66 = 62,118.72/x
  3. Step 3: Cross multiply
    219,888.90x = 329,834.66 × 62,118.72
  4. Step 4: Simplify right side
    219,888.90x = 20,488,906,580.24
  5. Step 5: Solve for x
    x = 20,488,906,580.24/219,888.90
  6. Step 6: Final answer
    x = 93,178.45

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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.