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Finding the Fourth Proportional to 93,218.58, 139,773.87 and 63,672.12

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Solution

The fourth proportional to 93,218.58, 139,773.87 and 63,672.12 is: 95,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,218.58 : 139,773.87 = 63,672.12 : x
  2. Step 2: Convert to fraction form
    93,218.58/139,773.87 = 63,672.12/x
  3. Step 3: Cross multiply
    93,218.58x = 139,773.87 × 63,672.12
  4. Step 4: Simplify right side
    93,218.58x = 8,899,698,623.50
  5. Step 5: Solve for x
    x = 8,899,698,623.50/93,218.58
  6. Step 6: Final answer
    x = 95,471.30

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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.