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Finding the Fourth Proportional to 155,208.83, 214,265.69 and 101,575.77

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Solution

The fourth proportional to 155,208.83, 214,265.69 and 101,575.77 is: 140,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,208.83 : 214,265.69 = 101,575.77 : x
  2. Step 2: Convert to fraction form
    155,208.83/214,265.69 = 101,575.77/x
  3. Step 3: Cross multiply
    155,208.83x = 214,265.69 × 101,575.77
  4. Step 4: Simplify right side
    155,208.83x = 21,764,202,721.11
  5. Step 5: Solve for x
    x = 21,764,202,721.11/155,208.83
  6. Step 6: Final answer
    x = 140,225.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.