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Finding the Fourth Proportional to 279,054.84, 418,668.68 and 96,701.16

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Solution

The fourth proportional to 279,054.84, 418,668.68 and 96,701.16 is: 145,081.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,054.84 : 418,668.68 = 96,701.16 : x
  2. Step 2: Convert to fraction form
    279,054.84/418,668.68 = 96,701.16/x
  3. Step 3: Cross multiply
    279,054.84x = 418,668.68 × 96,701.16
  4. Step 4: Simplify right side
    279,054.84x = 40,485,747,011.67
  5. Step 5: Solve for x
    x = 40,485,747,011.67/279,054.84
  6. Step 6: Final answer
    x = 145,081.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.