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Finding the Fourth Proportional to 98,963.25, 136,577.93 and 54,259.89

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Solution

The fourth proportional to 98,963.25, 136,577.93 and 54,259.89 is: 74,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,963.25 : 136,577.93 = 54,259.89 : x
  2. Step 2: Convert to fraction form
    98,963.25/136,577.93 = 54,259.89/x
  3. Step 3: Cross multiply
    98,963.25x = 136,577.93 × 54,259.89
  4. Step 4: Simplify right side
    98,963.25x = 7,410,703,186.93
  5. Step 5: Solve for x
    x = 7,410,703,186.93/98,963.25
  6. Step 6: Final answer
    x = 74,883.39

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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.