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Finding the Fourth Proportional to 221,378.22, 332,068.10 and 61,466.66

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Solution

The fourth proportional to 221,378.22, 332,068.10 and 61,466.66 is: 92,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,378.22 : 332,068.10 = 61,466.66 : x
  2. Step 2: Convert to fraction form
    221,378.22/332,068.10 = 61,466.66/x
  3. Step 3: Cross multiply
    221,378.22x = 332,068.10 × 61,466.66
  4. Step 4: Simplify right side
    221,378.22x = 20,411,117,046.63
  5. Step 5: Solve for x
    x = 20,411,117,046.63/221,378.22
  6. Step 6: Final answer
    x = 92,200.20

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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.