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Finding the Fourth Proportional to 223,767.84, 308,799.63 and 121,793.70

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Solution

The fourth proportional to 223,767.84, 308,799.63 and 121,793.70 is: 168,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,767.84 : 308,799.63 = 121,793.70 : x
  2. Step 2: Convert to fraction form
    223,767.84/308,799.63 = 121,793.70/x
  3. Step 3: Cross multiply
    223,767.84x = 308,799.63 × 121,793.70
  4. Step 4: Simplify right side
    223,767.84x = 37,609,849,496.33
  5. Step 5: Solve for x
    x = 37,609,849,496.33/223,767.84
  6. Step 6: Final answer
    x = 168,075.31

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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.