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Finding the Fourth Proportional to 168,686.83, 252,905.26 and 102,111.22

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Solution

The fourth proportional to 168,686.83, 252,905.26 and 102,111.22 is: 153,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,686.83 : 252,905.26 = 102,111.22 : x
  2. Step 2: Convert to fraction form
    168,686.83/252,905.26 = 102,111.22/x
  3. Step 3: Cross multiply
    168,686.83x = 252,905.26 × 102,111.22
  4. Step 4: Simplify right side
    168,686.83x = 25,824,464,643.02
  5. Step 5: Solve for x
    x = 25,824,464,643.02/168,686.83
  6. Step 6: Final answer
    x = 153,091.17

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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.