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Finding the Fourth Proportional to 228,897.08, 315,881.77 and 126,926.84

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Solution

The fourth proportional to 228,897.08, 315,881.77 and 126,926.84 is: 175,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,897.08 : 315,881.77 = 126,926.84 : x
  2. Step 2: Convert to fraction form
    228,897.08/315,881.77 = 126,926.84/x
  3. Step 3: Cross multiply
    228,897.08x = 315,881.77 × 126,926.84
  4. Step 4: Simplify right side
    228,897.08x = 40,093,873,300.30
  5. Step 5: Solve for x
    x = 40,093,873,300.30/228,897.08
  6. Step 6: Final answer
    x = 175,161.14

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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.