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Finding the Fourth Proportional to 196,445.54, 271,127.76 and 115,893.08

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Solution

The fourth proportional to 196,445.54, 271,127.76 and 115,893.08 is: 159,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,445.54 : 271,127.76 = 115,893.08 : x
  2. Step 2: Convert to fraction form
    196,445.54/271,127.76 = 115,893.08/x
  3. Step 3: Cross multiply
    196,445.54x = 271,127.76 × 115,893.08
  4. Step 4: Simplify right side
    196,445.54x = 31,421,831,179.90
  5. Step 5: Solve for x
    x = 31,421,831,179.90/196,445.54
  6. Step 6: Final answer
    x = 159,951.87

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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.