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Finding the Fourth Proportional to 71,693.98, 107,330.66 and 50,272.42

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Solution

The fourth proportional to 71,693.98, 107,330.66 and 50,272.42 is: 75,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.98 : 107,330.66 = 50,272.42 : x
  2. Step 2: Convert to fraction form
    71,693.98/107,330.66 = 50,272.42/x
  3. Step 3: Cross multiply
    71,693.98x = 107,330.66 × 50,272.42
  4. Step 4: Simplify right side
    71,693.98x = 5,395,772,018.40
  5. Step 5: Solve for x
    x = 5,395,772,018.40/71,693.98
  6. Step 6: Final answer
    x = 75,261.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.