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Finding the Fourth Proportional to 92,187.52, 138,255.31 and 25,612.50

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Solution

The fourth proportional to 92,187.52, 138,255.31 and 25,612.50 is: 38,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,187.52 : 138,255.31 = 25,612.50 : x
  2. Step 2: Convert to fraction form
    92,187.52/138,255.31 = 25,612.50/x
  3. Step 3: Cross multiply
    92,187.52x = 138,255.31 × 25,612.50
  4. Step 4: Simplify right side
    92,187.52x = 3,541,064,533.78
  5. Step 5: Solve for x
    x = 3,541,064,533.78/92,187.52
  6. Step 6: Final answer
    x = 38,411.54

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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.