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Finding the Fourth Proportional to 223,469.18, 308,393.54 and 121,501.52

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Solution

The fourth proportional to 223,469.18, 308,393.54 and 121,501.52 is: 167,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,469.18 : 308,393.54 = 121,501.52 : x
  2. Step 2: Convert to fraction form
    223,469.18/308,393.54 = 121,501.52/x
  3. Step 3: Cross multiply
    223,469.18x = 308,393.54 × 121,501.52
  4. Step 4: Simplify right side
    223,469.18x = 37,470,283,501.67
  5. Step 5: Solve for x
    x = 37,470,283,501.67/223,469.18
  6. Step 6: Final answer
    x = 167,675.40

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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.