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Finding the Fourth Proportional to 92,072.47, 138,114.55 and 28,895.09

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Solution

The fourth proportional to 92,072.47, 138,114.55 and 28,895.09 is: 43,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,072.47 : 138,114.55 = 28,895.09 : x
  2. Step 2: Convert to fraction form
    92,072.47/138,114.55 = 28,895.09/x
  3. Step 3: Cross multiply
    92,072.47x = 138,114.55 × 28,895.09
  4. Step 4: Simplify right side
    92,072.47x = 3,990,832,352.56
  5. Step 5: Solve for x
    x = 3,990,832,352.56/92,072.47
  6. Step 6: Final answer
    x = 43,344.47

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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.