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Finding the Fourth Proportional to 110,902.51, 153,048.63 and 61,845.28

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Solution

The fourth proportional to 110,902.51, 153,048.63 and 61,845.28 is: 85,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,902.51 : 153,048.63 = 61,845.28 : x
  2. Step 2: Convert to fraction form
    110,902.51/153,048.63 = 61,845.28/x
  3. Step 3: Cross multiply
    110,902.51x = 153,048.63 × 61,845.28
  4. Step 4: Simplify right side
    110,902.51x = 9,465,335,375.97
  5. Step 5: Solve for x
    x = 9,465,335,375.97/110,902.51
  6. Step 6: Final answer
    x = 85,348.25

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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.