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Finding the Fourth Proportional to 175,491.72, 242,178.62 and 99,027.02

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Solution

The fourth proportional to 175,491.72, 242,178.62 and 99,027.02 is: 136,657.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,491.72 : 242,178.62 = 99,027.02 : x
  2. Step 2: Convert to fraction form
    175,491.72/242,178.62 = 99,027.02/x
  3. Step 3: Cross multiply
    175,491.72x = 242,178.62 × 99,027.02
  4. Step 4: Simplify right side
    175,491.72x = 23,982,227,899.33
  5. Step 5: Solve for x
    x = 23,982,227,899.33/175,491.72
  6. Step 6: Final answer
    x = 136,657.32

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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.