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Finding the Fourth Proportional to 363,434.61, 545,239.80 and 114,116.61

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Solution

The fourth proportional to 363,434.61, 545,239.80 and 114,116.61 is: 171,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,434.61 : 545,239.80 = 114,116.61 : x
  2. Step 2: Convert to fraction form
    363,434.61/545,239.80 = 114,116.61/x
  3. Step 3: Cross multiply
    363,434.61x = 545,239.80 × 114,116.61
  4. Step 4: Simplify right side
    363,434.61x = 62,220,917,613.08
  5. Step 5: Solve for x
    x = 62,220,917,613.08/363,434.61
  6. Step 6: Final answer
    x = 171,202.51

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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.