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Finding the Fourth Proportional to 123,503.10, 170,434.44 and 66,914.43

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Solution

The fourth proportional to 123,503.10, 170,434.44 and 66,914.43 is: 92,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,503.10 : 170,434.44 = 66,914.43 : x
  2. Step 2: Convert to fraction form
    123,503.10/170,434.44 = 66,914.43/x
  3. Step 3: Cross multiply
    123,503.10x = 170,434.44 × 66,914.43
  4. Step 4: Simplify right side
    123,503.10x = 11,404,523,404.97
  5. Step 5: Solve for x
    x = 11,404,523,404.97/123,503.10
  6. Step 6: Final answer
    x = 92,342.00

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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.