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Finding the Fourth Proportional to 223,104.53, 307,882.54 and 121,127.97

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Solution

The fourth proportional to 223,104.53, 307,882.54 and 121,127.97 is: 167,155.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,104.53 : 307,882.54 = 121,127.97 : x
  2. Step 2: Convert to fraction form
    223,104.53/307,882.54 = 121,127.97/x
  3. Step 3: Cross multiply
    223,104.53x = 307,882.54 × 121,127.97
  4. Step 4: Simplify right side
    223,104.53x = 37,293,187,068.64
  5. Step 5: Solve for x
    x = 37,293,187,068.64/223,104.53
  6. Step 6: Final answer
    x = 167,155.67

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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.