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Finding the Fourth Proportional to 144,730.80, 199,655.03 and 98,755.96

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Solution

The fourth proportional to 144,730.80, 199,655.03 and 98,755.96 is: 136,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,730.80 : 199,655.03 = 98,755.96 : x
  2. Step 2: Convert to fraction form
    144,730.80/199,655.03 = 98,755.96/x
  3. Step 3: Cross multiply
    144,730.80x = 199,655.03 × 98,755.96
  4. Step 4: Simplify right side
    144,730.80x = 19,717,123,723.08
  5. Step 5: Solve for x
    x = 19,717,123,723.08/144,730.80
  6. Step 6: Final answer
    x = 136,233.09

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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.