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Finding the Fourth Proportional to 70,373.25, 97,090.97 and 40,136.82

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Solution

The fourth proportional to 70,373.25, 97,090.97 and 40,136.82 is: 55,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,373.25 : 97,090.97 = 40,136.82 : x
  2. Step 2: Convert to fraction form
    70,373.25/97,090.97 = 40,136.82/x
  3. Step 3: Cross multiply
    70,373.25x = 97,090.97 × 40,136.82
  4. Step 4: Simplify right side
    70,373.25x = 3,896,922,585.83
  5. Step 5: Solve for x
    x = 3,896,922,585.83/70,373.25
  6. Step 6: Final answer
    x = 55,375.05

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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.