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Finding the Fourth Proportional to 92,570.48, 138,855.75 and 22,449.79

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Solution

The fourth proportional to 92,570.48, 138,855.75 and 22,449.79 is: 33,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,570.48 : 138,855.75 = 22,449.79 : x
  2. Step 2: Convert to fraction form
    92,570.48/138,855.75 = 22,449.79/x
  3. Step 3: Cross multiply
    92,570.48x = 138,855.75 × 22,449.79
  4. Step 4: Simplify right side
    92,570.48x = 3,117,282,427.79
  5. Step 5: Solve for x
    x = 3,117,282,427.79/92,570.48
  6. Step 6: Final answer
    x = 33,674.69

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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.