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Finding the Fourth Proportional to 110,802.51, 166,204.35 and 31,918.62

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Solution

The fourth proportional to 110,802.51, 166,204.35 and 31,918.62 is: 47,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,802.51 : 166,204.35 = 31,918.62 : x
  2. Step 2: Convert to fraction form
    110,802.51/166,204.35 = 31,918.62/x
  3. Step 3: Cross multiply
    110,802.51x = 166,204.35 × 31,918.62
  4. Step 4: Simplify right side
    110,802.51x = 5,305,013,490.00
  5. Step 5: Solve for x
    x = 5,305,013,490.00/110,802.51
  6. Step 6: Final answer
    x = 47,878.10

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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.