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Finding the Fourth Proportional to 219,292.60, 328,950.54 and 69,544.70

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Solution

The fourth proportional to 219,292.60, 328,950.54 and 69,544.70 is: 104,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,292.60 : 328,950.54 = 69,544.70 : x
  2. Step 2: Convert to fraction form
    219,292.60/328,950.54 = 69,544.70/x
  3. Step 3: Cross multiply
    219,292.60x = 328,950.54 × 69,544.70
  4. Step 4: Simplify right side
    219,292.60x = 22,876,766,619.14
  5. Step 5: Solve for x
    x = 22,876,766,619.14/219,292.60
  6. Step 6: Final answer
    x = 104,320.74

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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.