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Finding the Fourth Proportional to 73,274.42, 101,118.88 and 39,740.42

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Solution

The fourth proportional to 73,274.42, 101,118.88 and 39,740.42 is: 54,841.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,274.42 : 101,118.88 = 39,740.42 : x
  2. Step 2: Convert to fraction form
    73,274.42/101,118.88 = 39,740.42/x
  3. Step 3: Cross multiply
    73,274.42x = 101,118.88 × 39,740.42
  4. Step 4: Simplify right side
    73,274.42x = 4,018,507,063.60
  5. Step 5: Solve for x
    x = 4,018,507,063.60/73,274.42
  6. Step 6: Final answer
    x = 54,841.88

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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.