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Finding the Fourth Proportional to 219,015.03, 328,472.33 and 61,254.63

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Solution

The fourth proportional to 219,015.03, 328,472.33 and 61,254.63 is: 91,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,015.03 : 328,472.33 = 61,254.63 : x
  2. Step 2: Convert to fraction form
    219,015.03/328,472.33 = 61,254.63/x
  3. Step 3: Cross multiply
    219,015.03x = 328,472.33 × 61,254.63
  4. Step 4: Simplify right side
    219,015.03x = 20,120,450,733.11
  5. Step 5: Solve for x
    x = 20,120,450,733.11/219,015.03
  6. Step 6: Final answer
    x = 91,867.90

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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.