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Finding the Fourth Proportional to 219,753.42, 329,638.23 and 61,986.08

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Solution

The fourth proportional to 219,753.42, 329,638.23 and 61,986.08 is: 92,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,753.42 : 329,638.23 = 61,986.08 : x
  2. Step 2: Convert to fraction form
    219,753.42/329,638.23 = 61,986.08/x
  3. Step 3: Cross multiply
    219,753.42x = 329,638.23 × 61,986.08
  4. Step 4: Simplify right side
    219,753.42x = 20,432,980,047.65
  5. Step 5: Solve for x
    x = 20,432,980,047.65/219,753.42
  6. Step 6: Final answer
    x = 92,981.40

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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.