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Finding the Fourth Proportional to 144,264.49, 199,083.91 and 79,738.12

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Solution

The fourth proportional to 144,264.49, 199,083.91 and 79,738.12 is: 110,038.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,264.49 : 199,083.91 = 79,738.12 : x
  2. Step 2: Convert to fraction form
    144,264.49/199,083.91 = 79,738.12/x
  3. Step 3: Cross multiply
    144,264.49x = 199,083.91 × 79,738.12
  4. Step 4: Simplify right side
    144,264.49x = 15,874,575,311.54
  5. Step 5: Solve for x
    x = 15,874,575,311.54/144,264.49
  6. Step 6: Final answer
    x = 110,038.00

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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.