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Finding the Fourth Proportional to 123,847.98, 170,912.19 and 67,259.35

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Solution

The fourth proportional to 123,847.98, 170,912.19 and 67,259.35 is: 92,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,847.98 : 170,912.19 = 67,259.35 : x
  2. Step 2: Convert to fraction form
    123,847.98/170,912.19 = 67,259.35/x
  3. Step 3: Cross multiply
    123,847.98x = 170,912.19 × 67,259.35
  4. Step 4: Simplify right side
    123,847.98x = 11,495,442,806.48
  5. Step 5: Solve for x
    x = 11,495,442,806.48/123,847.98
  6. Step 6: Final answer
    x = 92,818.98

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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.