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Finding the Fourth Proportional to 144,242.84, 199,054.62 and 79,710.29

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Solution

The fourth proportional to 144,242.84, 199,054.62 and 79,710.29 is: 109,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,242.84 : 199,054.62 = 79,710.29 : x
  2. Step 2: Convert to fraction form
    144,242.84/199,054.62 = 79,710.29/x
  3. Step 3: Cross multiply
    144,242.84x = 199,054.62 × 79,710.29
  4. Step 4: Simplify right side
    144,242.84x = 15,866,701,486.04
  5. Step 5: Solve for x
    x = 15,866,701,486.04/144,242.84
  6. Step 6: Final answer
    x = 109,999.92

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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.