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Finding the Fourth Proportional to 223,666.92, 308,663.39 and 121,693.59

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Solution

The fourth proportional to 223,666.92, 308,663.39 and 121,693.59 is: 167,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,666.92 : 308,663.39 = 121,693.59 : x
  2. Step 2: Convert to fraction form
    223,666.92/308,663.39 = 121,693.59/x
  3. Step 3: Cross multiply
    223,666.92x = 308,663.39 × 121,693.59
  4. Step 4: Simplify right side
    223,666.92x = 37,562,356,334.90
  5. Step 5: Solve for x
    x = 37,562,356,334.90/223,666.92
  6. Step 6: Final answer
    x = 167,938.81

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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.