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Finding the Fourth Proportional to 219,049.61, 328,594.44 and 61,277.60

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Solution

The fourth proportional to 219,049.61, 328,594.44 and 61,277.60 is: 91,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,049.61 : 328,594.44 = 61,277.60 : x
  2. Step 2: Convert to fraction form
    219,049.61/328,594.44 = 61,277.60/x
  3. Step 3: Cross multiply
    219,049.61x = 328,594.44 × 61,277.60
  4. Step 4: Simplify right side
    219,049.61x = 20,135,477,013.57
  5. Step 5: Solve for x
    x = 20,135,477,013.57/219,049.61
  6. Step 6: Final answer
    x = 91,922.00

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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.