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Finding the Fourth Proportional to 75,173.74, 112,621.41 and 37,690.06

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Solution

The fourth proportional to 75,173.74, 112,621.41 and 37,690.06 is: 56,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,173.74 : 112,621.41 = 37,690.06 : x
  2. Step 2: Convert to fraction form
    75,173.74/112,621.41 = 37,690.06/x
  3. Step 3: Cross multiply
    75,173.74x = 112,621.41 × 37,690.06
  4. Step 4: Simplify right side
    75,173.74x = 4,244,707,700.18
  5. Step 5: Solve for x
    x = 4,244,707,700.18/75,173.74
  6. Step 6: Final answer
    x = 56,465.30

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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.