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Finding the Fourth Proportional to 219,244.12, 328,829.12 and 61,436.27

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Solution

The fourth proportional to 219,244.12, 328,829.12 and 61,436.27 is: 92,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,244.12 : 328,829.12 = 61,436.27 : x
  2. Step 2: Convert to fraction form
    219,244.12/328,829.12 = 61,436.27/x
  3. Step 3: Cross multiply
    219,244.12x = 328,829.12 × 61,436.27
  4. Step 4: Simplify right side
    219,244.12x = 20,202,035,345.46
  5. Step 5: Solve for x
    x = 20,202,035,345.46/219,244.12
  6. Step 6: Final answer
    x = 92,144.02

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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.