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Finding the Fourth Proportional to 219,048.10, 328,592.19 and 61,276.10

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Solution

The fourth proportional to 219,048.10, 328,592.19 and 61,276.10 is: 91,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,048.10 : 328,592.19 = 61,276.10 : x
  2. Step 2: Convert to fraction form
    219,048.10/328,592.19 = 61,276.10/x
  3. Step 3: Cross multiply
    219,048.10x = 328,592.19 × 61,276.10
  4. Step 4: Simplify right side
    219,048.10x = 20,134,846,480.48
  5. Step 5: Solve for x
    x = 20,134,846,480.48/219,048.10
  6. Step 6: Final answer
    x = 91,919.75

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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.