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Finding the Fourth Proportional to 219,255.97, 328,895.56 and 69,507.94

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Solution

The fourth proportional to 219,255.97, 328,895.56 and 69,507.94 is: 104,265.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,255.97 : 328,895.56 = 69,507.94 : x
  2. Step 2: Convert to fraction form
    219,255.97/328,895.56 = 69,507.94/x
  3. Step 3: Cross multiply
    219,255.97x = 328,895.56 × 69,507.94
  4. Step 4: Simplify right side
    219,255.97x = 22,860,852,850.75
  5. Step 5: Solve for x
    x = 22,860,852,850.75/219,255.97
  6. Step 6: Final answer
    x = 104,265.59

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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.