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Finding the Fourth Proportional to 92,147.88, 138,205.08 and 25,571.28

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Solution

The fourth proportional to 92,147.88, 138,205.08 and 25,571.28 is: 38,352.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,147.88 : 138,205.08 = 25,571.28 : x
  2. Step 2: Convert to fraction form
    92,147.88/138,205.08 = 25,571.28/x
  3. Step 3: Cross multiply
    92,147.88x = 138,205.08 × 25,571.28
  4. Step 4: Simplify right side
    92,147.88x = 3,534,080,798.10
  5. Step 5: Solve for x
    x = 3,534,080,798.10/92,147.88
  6. Step 6: Final answer
    x = 38,352.27

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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.