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Finding the Fourth Proportional to 123,033.25, 169,785.90 and 66,444.63

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Solution

The fourth proportional to 123,033.25, 169,785.90 and 66,444.63 is: 91,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,033.25 : 169,785.90 = 66,444.63 : x
  2. Step 2: Convert to fraction form
    123,033.25/169,785.90 = 66,444.63/x
  3. Step 3: Cross multiply
    123,033.25x = 169,785.90 × 66,444.63
  4. Step 4: Simplify right side
    123,033.25x = 11,281,361,304.72
  5. Step 5: Solve for x
    x = 11,281,361,304.72/123,033.25
  6. Step 6: Final answer
    x = 91,693.60

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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.