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Finding the Fourth Proportional to 155,698.01, 214,898.22 and 101,951.81

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Solution

The fourth proportional to 155,698.01, 214,898.22 and 101,951.81 is: 140,716.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,698.01 : 214,898.22 = 101,951.81 : x
  2. Step 2: Convert to fraction form
    155,698.01/214,898.22 = 101,951.81/x
  3. Step 3: Cross multiply
    155,698.01x = 214,898.22 × 101,951.81
  4. Step 4: Simplify right side
    155,698.01x = 21,909,261,420.29
  5. Step 5: Solve for x
    x = 21,909,261,420.29/155,698.01
  6. Step 6: Final answer
    x = 140,716.39

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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.