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Finding the Fourth Proportional to 219,122.51, 328,683.77 and 52,910.51

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Solution

The fourth proportional to 219,122.51, 328,683.77 and 52,910.51 is: 79,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,122.51 : 328,683.77 = 52,910.51 : x
  2. Step 2: Convert to fraction form
    219,122.51/328,683.77 = 52,910.51/x
  3. Step 3: Cross multiply
    219,122.51x = 328,683.77 × 52,910.51
  4. Step 4: Simplify right side
    219,122.51x = 17,390,825,634.87
  5. Step 5: Solve for x
    x = 17,390,825,634.87/219,122.51
  6. Step 6: Final answer
    x = 79,365.77

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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.