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Finding the Fourth Proportional to 99,011.97, 136,637.69 and 54,299.97

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Solution

The fourth proportional to 99,011.97, 136,637.69 and 54,299.97 is: 74,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011.97 : 136,637.69 = 54,299.97 : x
  2. Step 2: Convert to fraction form
    99,011.97/136,637.69 = 54,299.97/x
  3. Step 3: Cross multiply
    99,011.97x = 136,637.69 × 54,299.97
  4. Step 4: Simplify right side
    99,011.97x = 7,419,422,196.37
  5. Step 5: Solve for x
    x = 7,419,422,196.37/99,011.97
  6. Step 6: Final answer
    x = 74,934.60

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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.