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Finding the Fourth Proportional to 403,348.50, 604,881.60 and 118,963.56

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Solution

The fourth proportional to 403,348.50, 604,881.60 and 118,963.56 is: 178,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,348.50 : 604,881.60 = 118,963.56 : x
  2. Step 2: Convert to fraction form
    403,348.50/604,881.60 = 118,963.56/x
  3. Step 3: Cross multiply
    403,348.50x = 604,881.60 × 118,963.56
  4. Step 4: Simplify right side
    403,348.50x = 71,958,868,514.50
  5. Step 5: Solve for x
    x = 71,958,868,514.50/403,348.50
  6. Step 6: Final answer
    x = 178,403.71

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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.