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Finding the Fourth Proportional to 93,318.53, 139,894.91 and 36,379.31

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Solution

The fourth proportional to 93,318.53, 139,894.91 and 36,379.31 is: 54,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,318.53 : 139,894.91 = 36,379.31 : x
  2. Step 2: Convert to fraction form
    93,318.53/139,894.91 = 36,379.31/x
  3. Step 3: Cross multiply
    93,318.53x = 139,894.91 × 36,379.31
  4. Step 4: Simplify right side
    93,318.53x = 5,089,280,116.42
  5. Step 5: Solve for x
    x = 5,089,280,116.42/93,318.53
  6. Step 6: Final answer
    x = 54,536.65

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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.