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Finding the Fourth Proportional to 70,957.63, 97,922.19 and 39,127.66

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Solution

The fourth proportional to 70,957.63, 97,922.19 and 39,127.66 is: 53,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,957.63 : 97,922.19 = 39,127.66 : x
  2. Step 2: Convert to fraction form
    70,957.63/97,922.19 = 39,127.66/x
  3. Step 3: Cross multiply
    70,957.63x = 97,922.19 × 39,127.66
  4. Step 4: Simplify right side
    70,957.63x = 3,831,466,156.78
  5. Step 5: Solve for x
    x = 3,831,466,156.78/70,957.63
  6. Step 6: Final answer
    x = 53,996.54

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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.