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Finding the Fourth Proportional to 99,954.66, 137,924.10 and 64,193.07

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Solution

The fourth proportional to 99,954.66, 137,924.10 and 64,193.07 is: 88,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,954.66 : 137,924.10 = 64,193.07 : x
  2. Step 2: Convert to fraction form
    99,954.66/137,924.10 = 64,193.07/x
  3. Step 3: Cross multiply
    99,954.66x = 137,924.10 × 64,193.07
  4. Step 4: Simplify right side
    99,954.66x = 8,853,771,405.99
  5. Step 5: Solve for x
    x = 8,853,771,405.99/99,954.66
  6. Step 6: Final answer
    x = 88,577.88

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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.