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Finding the Fourth Proportional to 219,700.89, 329,546.75 and 69,951.51

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Solution

The fourth proportional to 219,700.89, 329,546.75 and 69,951.51 is: 104,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,700.89 : 329,546.75 = 69,951.51 : x
  2. Step 2: Convert to fraction form
    219,700.89/329,546.75 = 69,951.51/x
  3. Step 3: Cross multiply
    219,700.89x = 329,546.75 × 69,951.51
  4. Step 4: Simplify right side
    219,700.89x = 23,052,292,428.34
  5. Step 5: Solve for x
    x = 23,052,292,428.34/219,700.89
  6. Step 6: Final answer
    x = 104,925.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.