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Finding the Fourth Proportional to 220,031.86, 303,644.55 and 119,429.86

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Solution

The fourth proportional to 220,031.86, 303,644.55 and 119,429.86 is: 164,813.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,031.86 : 303,644.55 = 119,429.86 : x
  2. Step 2: Convert to fraction form
    220,031.86/303,644.55 = 119,429.86/x
  3. Step 3: Cross multiply
    220,031.86x = 303,644.55 × 119,429.86
  4. Step 4: Simplify right side
    220,031.86x = 36,264,226,096.26
  5. Step 5: Solve for x
    x = 36,264,226,096.26/220,031.86
  6. Step 6: Final answer
    x = 164,813.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.