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Finding the Fourth Proportional to 403,007.58, 604,382.58 and 133,085.43

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Solution

The fourth proportional to 403,007.58, 604,382.58 and 133,085.43 is: 199,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,007.58 : 604,382.58 = 133,085.43 : x
  2. Step 2: Convert to fraction form
    403,007.58/604,382.58 = 133,085.43/x
  3. Step 3: Cross multiply
    403,007.58x = 604,382.58 × 133,085.43
  4. Step 4: Simplify right side
    403,007.58x = 80,434,515,543.81
  5. Step 5: Solve for x
    x = 80,434,515,543.81/403,007.58
  6. Step 6: Final answer
    x = 199,585.61

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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.