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Finding the Fourth Proportional to 108,774.88, 163,162.32 and 38,656.96

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Solution

The fourth proportional to 108,774.88, 163,162.32 and 38,656.96 is: 57,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,774.88 : 163,162.32 = 38,656.96 : x
  2. Step 2: Convert to fraction form
    108,774.88/163,162.32 = 38,656.96/x
  3. Step 3: Cross multiply
    108,774.88x = 163,162.32 × 38,656.96
  4. Step 4: Simplify right side
    108,774.88x = 6,307,359,277.75
  5. Step 5: Solve for x
    x = 6,307,359,277.75/108,774.88
  6. Step 6: Final answer
    x = 57,985.44

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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.