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Finding the Fourth Proportional to 123,942.95, 171,041.26 and 67,354.32

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Solution

The fourth proportional to 123,942.95, 171,041.26 and 67,354.32 is: 92,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,942.95 : 171,041.26 = 67,354.32 : x
  2. Step 2: Convert to fraction form
    123,942.95/171,041.26 = 67,354.32/x
  3. Step 3: Cross multiply
    123,942.95x = 171,041.26 × 67,354.32
  4. Step 4: Simplify right side
    123,942.95x = 11,520,367,422.47
  5. Step 5: Solve for x
    x = 11,520,367,422.47/123,942.95
  6. Step 6: Final answer
    x = 92,948.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.