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Finding the Fourth Proportional to 99,274.82, 136,999.08 and 53,952.66

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Solution

The fourth proportional to 99,274.82, 136,999.08 and 53,952.66 is: 74,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,274.82 : 136,999.08 = 53,952.66 : x
  2. Step 2: Convert to fraction form
    99,274.82/136,999.08 = 53,952.66/x
  3. Step 3: Cross multiply
    99,274.82x = 136,999.08 × 53,952.66
  4. Step 4: Simplify right side
    99,274.82x = 7,391,464,783.55
  5. Step 5: Solve for x
    x = 7,391,464,783.55/99,274.82
  6. Step 6: Final answer
    x = 74,454.58

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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.