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Finding the Fourth Proportional to 144,667.78, 199,508.36 and 99,265.66

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Solution

The fourth proportional to 144,667.78, 199,508.36 and 99,265.66 is: 136,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,667.78 : 199,508.36 = 99,265.66 : x
  2. Step 2: Convert to fraction form
    144,667.78/199,508.36 = 99,265.66/x
  3. Step 3: Cross multiply
    144,667.78x = 199,508.36 × 99,265.66
  4. Step 4: Simplify right side
    144,667.78x = 19,804,329,030.92
  5. Step 5: Solve for x
    x = 19,804,329,030.92/144,667.78
  6. Step 6: Final answer
    x = 136,895.23

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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.