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Finding the Fourth Proportional to 99,069.03, 136,715.31 and 53,747.00

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Solution

The fourth proportional to 99,069.03, 136,715.31 and 53,747.00 is: 74,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,069.03 : 136,715.31 = 53,747.00 : x
  2. Step 2: Convert to fraction form
    99,069.03/136,715.31 = 53,747.00/x
  3. Step 3: Cross multiply
    99,069.03x = 136,715.31 × 53,747.00
  4. Step 4: Simplify right side
    99,069.03x = 7,348,037,595.68
  5. Step 5: Solve for x
    x = 7,348,037,595.68/99,069.03
  6. Step 6: Final answer
    x = 74,170.88

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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.