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Finding the Fourth Proportional to 193,080.84, 266,447.79 and 105,864.90

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Solution

The fourth proportional to 193,080.84, 266,447.79 and 105,864.90 is: 146,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,080.84 : 266,447.79 = 105,864.90 : x
  2. Step 2: Convert to fraction form
    193,080.84/266,447.79 = 105,864.90/x
  3. Step 3: Cross multiply
    193,080.84x = 266,447.79 × 105,864.90
  4. Step 4: Simplify right side
    193,080.84x = 28,207,468,643.57
  5. Step 5: Solve for x
    x = 28,207,468,643.57/193,080.84
  6. Step 6: Final answer
    x = 146,091.50

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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.