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Finding the Fourth Proportional to 71,096.40, 98,108.08 and 39,262.79

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Solution

The fourth proportional to 71,096.40, 98,108.08 and 39,262.79 is: 54,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,096.40 : 98,108.08 = 39,262.79 : x
  2. Step 2: Convert to fraction form
    71,096.40/98,108.08 = 39,262.79/x
  3. Step 3: Cross multiply
    71,096.40x = 98,108.08 × 39,262.79
  4. Step 4: Simplify right side
    71,096.40x = 3,851,997,089.46
  5. Step 5: Solve for x
    x = 3,851,997,089.46/71,096.40
  6. Step 6: Final answer
    x = 54,179.92

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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.