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Finding the Fourth Proportional to 133,053.70, 199,580.55 and 91,063.30

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Solution

The fourth proportional to 133,053.70, 199,580.55 and 91,063.30 is: 136,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,053.70 : 199,580.55 = 91,063.30 : x
  2. Step 2: Convert to fraction form
    133,053.70/199,580.55 = 91,063.30/x
  3. Step 3: Cross multiply
    133,053.70x = 199,580.55 × 91,063.30
  4. Step 4: Simplify right side
    133,053.70x = 18,174,463,498.82
  5. Step 5: Solve for x
    x = 18,174,463,498.82/133,053.70
  6. Step 6: Final answer
    x = 136,594.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.