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Finding the Fourth Proportional to 123,325.98, 170,190.30 and 66,737.34

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Solution

The fourth proportional to 123,325.98, 170,190.30 and 66,737.34 is: 92,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,325.98 : 170,190.30 = 66,737.34 : x
  2. Step 2: Convert to fraction form
    123,325.98/170,190.30 = 66,737.34/x
  3. Step 3: Cross multiply
    123,325.98x = 170,190.30 × 66,737.34
  4. Step 4: Simplify right side
    123,325.98x = 11,358,047,915.80
  5. Step 5: Solve for x
    x = 11,358,047,915.80/123,325.98
  6. Step 6: Final answer
    x = 92,097.77

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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.