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Finding the Fourth Proportional to 220,839.66, 331,252.74 and 63,068.40

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Solution

The fourth proportional to 220,839.66, 331,252.74 and 63,068.40 is: 94,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,839.66 : 331,252.74 = 63,068.40 : x
  2. Step 2: Convert to fraction form
    220,839.66/331,252.74 = 63,068.40/x
  3. Step 3: Cross multiply
    220,839.66x = 331,252.74 × 63,068.40
  4. Step 4: Simplify right side
    220,839.66x = 20,891,580,307.42
  5. Step 5: Solve for x
    x = 20,891,580,307.42/220,839.66
  6. Step 6: Final answer
    x = 94,600.67

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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.