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Finding the Fourth Proportional to 123,596.90, 170,564.10 and 67,008.32

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Solution

The fourth proportional to 123,596.90, 170,564.10 and 67,008.32 is: 92,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,596.90 : 170,564.10 = 67,008.32 : x
  2. Step 2: Convert to fraction form
    123,596.90/170,564.10 = 67,008.32/x
  3. Step 3: Cross multiply
    123,596.90x = 170,564.10 × 67,008.32
  4. Step 4: Simplify right side
    123,596.90x = 11,429,213,793.31
  5. Step 5: Solve for x
    x = 11,429,213,793.31/123,596.90
  6. Step 6: Final answer
    x = 92,471.69

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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.