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Finding the Fourth Proportional to 363,814.80, 545,981.40 and 153,603.60

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Solution

The fourth proportional to 363,814.80, 545,981.40 and 153,603.60 is: 230,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,814.80 : 545,981.40 = 153,603.60 : x
  2. Step 2: Convert to fraction form
    363,814.80/545,981.40 = 153,603.60/x
  3. Step 3: Cross multiply
    363,814.80x = 545,981.40 × 153,603.60
  4. Step 4: Simplify right side
    363,814.80x = 83,864,708,573.04
  5. Step 5: Solve for x
    x = 83,864,708,573.04/363,814.80
  6. Step 6: Final answer
    x = 230,514.83

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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.