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Finding the Fourth Proportional to 99,553.44, 137,383.69 and 54,841.44

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Solution

The fourth proportional to 99,553.44, 137,383.69 and 54,841.44 is: 75,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,553.44 : 137,383.69 = 54,841.44 : x
  2. Step 2: Convert to fraction form
    99,553.44/137,383.69 = 54,841.44/x
  3. Step 3: Cross multiply
    99,553.44x = 137,383.69 × 54,841.44
  4. Step 4: Simplify right side
    99,553.44x = 7,534,319,392.11
  5. Step 5: Solve for x
    x = 7,534,319,392.11/99,553.44
  6. Step 6: Final answer
    x = 75,681.16

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1.5x scale

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.