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Finding the Fourth Proportional to 223,648.96, 308,628.48 and 123,046.40

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Solution

The fourth proportional to 223,648.96, 308,628.48 and 123,046.40 is: 169,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,648.96 : 308,628.48 = 123,046.40 : x
  2. Step 2: Convert to fraction form
    223,648.96/308,628.48 = 123,046.40/x
  3. Step 3: Cross multiply
    223,648.96x = 308,628.48 × 123,046.40
  4. Step 4: Simplify right side
    223,648.96x = 37,975,623,401.47
  5. Step 5: Solve for x
    x = 37,975,623,401.47/223,648.96
  6. Step 6: Final answer
    x = 169,800.13

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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.