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Finding the Fourth Proportional to 73,681.42, 110,554.80 and 38,612.74

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Solution

The fourth proportional to 73,681.42, 110,554.80 and 38,612.74 is: 57,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,681.42 : 110,554.80 = 38,612.74 : x
  2. Step 2: Convert to fraction form
    73,681.42/110,554.80 = 38,612.74/x
  3. Step 3: Cross multiply
    73,681.42x = 110,554.80 × 38,612.74
  4. Step 4: Simplify right side
    73,681.42x = 4,268,823,748.15
  5. Step 5: Solve for x
    x = 4,268,823,748.15/73,681.42
  6. Step 6: Final answer
    x = 57,936.23

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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.