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Finding the Fourth Proportional to 108,774.88, 163,188.24 and 42,216.64

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Solution

The fourth proportional to 108,774.88, 163,188.24 and 42,216.64 is: 63,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,774.88 : 163,188.24 = 42,216.64 : x
  2. Step 2: Convert to fraction form
    108,774.88/163,188.24 = 42,216.64/x
  3. Step 3: Cross multiply
    108,774.88x = 163,188.24 × 42,216.64
  4. Step 4: Simplify right side
    108,774.88x = 6,889,259,180.31
  5. Step 5: Solve for x
    x = 6,889,259,180.31/108,774.88
  6. Step 6: Final answer
    x = 63,335.02

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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.