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Finding the Fourth Proportional to 223,338.80, 308,234.16 and 127,876.16

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Solution

The fourth proportional to 223,338.80, 308,234.16 and 127,876.16 is: 176,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,338.80 : 308,234.16 = 127,876.16 : x
  2. Step 2: Convert to fraction form
    223,338.80/308,234.16 = 127,876.16/x
  3. Step 3: Cross multiply
    223,338.80x = 308,234.16 × 127,876.16
  4. Step 4: Simplify right side
    223,338.80x = 39,415,800,761.63
  5. Step 5: Solve for x
    x = 39,415,800,761.63/223,338.80
  6. Step 6: Final answer
    x = 176,484.34

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1.5x scale

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.