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Finding the Fourth Proportional to 93,638.92, 129,221.72 and 51,197.48

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Solution

The fourth proportional to 93,638.92, 129,221.72 and 51,197.48 is: 70,652.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,638.92 : 129,221.72 = 51,197.48 : x
  2. Step 2: Convert to fraction form
    93,638.92/129,221.72 = 51,197.48/x
  3. Step 3: Cross multiply
    93,638.92x = 129,221.72 × 51,197.48
  4. Step 4: Simplify right side
    93,638.92x = 6,615,826,425.27
  5. Step 5: Solve for x
    x = 6,615,826,425.27/93,638.92
  6. Step 6: Final answer
    x = 70,652.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.