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Finding the Fourth Proportional to 243,423.78, 365,131.72 and 93,696.60

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Solution

The fourth proportional to 243,423.78, 365,131.72 and 93,696.60 is: 140,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,423.78 : 365,131.72 = 93,696.60 : x
  2. Step 2: Convert to fraction form
    243,423.78/365,131.72 = 93,696.60/x
  3. Step 3: Cross multiply
    243,423.78x = 365,131.72 × 93,696.60
  4. Step 4: Simplify right side
    243,423.78x = 34,211,600,716.15
  5. Step 5: Solve for x
    x = 34,211,600,716.15/243,423.78
  6. Step 6: Final answer
    x = 140,543.38

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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.