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Finding the Fourth Proportional to 93,317.86, 139,911.16 and 43,344.90

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Solution

The fourth proportional to 93,317.86, 139,911.16 and 43,344.90 is: 64,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,317.86 : 139,911.16 = 43,344.90 : x
  2. Step 2: Convert to fraction form
    93,317.86/139,911.16 = 43,344.90/x
  3. Step 3: Cross multiply
    93,317.86x = 139,911.16 × 43,344.90
  4. Step 4: Simplify right side
    93,317.86x = 6,064,435,239.08
  5. Step 5: Solve for x
    x = 6,064,435,239.08/93,317.86
  6. Step 6: Final answer
    x = 64,986.87

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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.