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Finding the Fourth Proportional to 93,196.94, 139,694.85 and 45,756.86

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Solution

The fourth proportional to 93,196.94, 139,694.85 and 45,756.86 is: 68,585.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,196.94 : 139,694.85 = 45,756.86 : x
  2. Step 2: Convert to fraction form
    93,196.94/139,694.85 = 45,756.86/x
  3. Step 3: Cross multiply
    93,196.94x = 139,694.85 × 45,756.86
  4. Step 4: Simplify right side
    93,196.94x = 6,391,997,694.17
  5. Step 5: Solve for x
    x = 6,391,997,694.17/93,196.94
  6. Step 6: Final answer
    x = 68,585.92

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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.