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Finding the Fourth Proportional to 92,049, 138,075.18 and 28,867.71

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Solution

The fourth proportional to 92,049, 138,075.18 and 28,867.71 is: 43,302.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,049 : 138,075.18 = 28,867.71 : x
  2. Step 2: Convert to fraction form
    92,049/138,075.18 = 28,867.71/x
  3. Step 3: Cross multiply
    92,049x = 138,075.18 × 28,867.71
  4. Step 4: Simplify right side
    92,049x = 3,985,914,254.44
  5. Step 5: Solve for x
    x = 3,985,914,254.44/92,049
  6. Step 6: Final answer
    x = 43,302.09

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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.