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Finding the Fourth Proportional to 223,543.13, 308,491.00 and 121,569.73

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Solution

The fourth proportional to 223,543.13, 308,491.00 and 121,569.73 is: 167,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,543.13 : 308,491.00 = 121,569.73 : x
  2. Step 2: Convert to fraction form
    223,543.13/308,491.00 = 121,569.73/x
  3. Step 3: Cross multiply
    223,543.13x = 308,491.00 × 121,569.73
  4. Step 4: Simplify right side
    223,543.13x = 37,503,166,502.28
  5. Step 5: Solve for x
    x = 37,503,166,502.28/223,543.13
  6. Step 6: Final answer
    x = 167,767.03

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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.