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Finding the Fourth Proportional to 219,398.25, 329,097.39 and 53,186.25

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Solution

The fourth proportional to 219,398.25, 329,097.39 and 53,186.25 is: 79,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,398.25 : 329,097.39 = 53,186.25 : x
  2. Step 2: Convert to fraction form
    219,398.25/329,097.39 = 53,186.25/x
  3. Step 3: Cross multiply
    219,398.25x = 329,097.39 × 53,186.25
  4. Step 4: Simplify right side
    219,398.25x = 17,503,456,058.89
  5. Step 5: Solve for x
    x = 17,503,456,058.89/219,398.25
  6. Step 6: Final answer
    x = 79,779.38

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1.5x scale

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.