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Finding the Fourth Proportional to 228,976.95, 316,003.50 and 127,034.81

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Solution

The fourth proportional to 228,976.95, 316,003.50 and 127,034.81 is: 175,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,976.95 : 316,003.50 = 127,034.81 : x
  2. Step 2: Convert to fraction form
    228,976.95/316,003.50 = 127,034.81/x
  3. Step 3: Cross multiply
    228,976.95x = 316,003.50 × 127,034.81
  4. Step 4: Simplify right side
    228,976.95x = 40,143,443,001.82
  5. Step 5: Solve for x
    x = 40,143,443,001.82/228,976.95
  6. Step 6: Final answer
    x = 175,316.52

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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.