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Finding the Fourth Proportional to 223,060.65, 307,823.94 and 121,086.06

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Solution

The fourth proportional to 223,060.65, 307,823.94 and 121,086.06 is: 167,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,060.65 : 307,823.94 = 121,086.06 : x
  2. Step 2: Convert to fraction form
    223,060.65/307,823.94 = 121,086.06/x
  3. Step 3: Cross multiply
    223,060.65x = 307,823.94 × 121,086.06
  4. Step 4: Simplify right side
    223,060.65x = 37,273,188,068.28
  5. Step 5: Solve for x
    x = 37,273,188,068.28/223,060.65
  6. Step 6: Final answer
    x = 167,098.89

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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.