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Finding the Fourth Proportional to 93,131.66, 139,593.61 and 36,956.74

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Solution

The fourth proportional to 93,131.66, 139,593.61 and 36,956.74 is: 55,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,131.66 : 139,593.61 = 36,956.74 : x
  2. Step 2: Convert to fraction form
    93,131.66/139,593.61 = 36,956.74/x
  3. Step 3: Cross multiply
    93,131.66x = 139,593.61 × 36,956.74
  4. Step 4: Simplify right side
    93,131.66x = 5,158,924,750.43
  5. Step 5: Solve for x
    x = 5,158,924,750.43/93,131.66
  6. Step 6: Final answer
    x = 55,393.89

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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.