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Finding the Fourth Proportional to 93,212.64, 139,702.20 and 73,413

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Solution

The fourth proportional to 93,212.64, 139,702.20 and 73,413 is: 110,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,212.64 : 139,702.20 = 73,413 : x
  2. Step 2: Convert to fraction form
    93,212.64/139,702.20 = 73,413/x
  3. Step 3: Cross multiply
    93,212.64x = 139,702.20 × 73,413
  4. Step 4: Simplify right side
    93,212.64x = 10,255,957,608.60
  5. Step 5: Solve for x
    x = 10,255,957,608.60/93,212.64
  6. Step 6: Final answer
    x = 110,027.54

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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.