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Finding the Fourth Proportional to 219,483.86, 329,202.15 and 148,859.87

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Solution

The fourth proportional to 219,483.86, 329,202.15 and 148,859.87 is: 223,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,483.86 : 329,202.15 = 148,859.87 : x
  2. Step 2: Convert to fraction form
    219,483.86/329,202.15 = 148,859.87/x
  3. Step 3: Cross multiply
    219,483.86x = 329,202.15 × 148,859.87
  4. Step 4: Simplify right side
    219,483.86x = 49,004,987,606.71
  5. Step 5: Solve for x
    x = 49,004,987,606.71/219,483.86
  6. Step 6: Final answer
    x = 223,273.77

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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.