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Finding the Fourth Proportional to 123,080.54, 169,852.21 and 69,355.26

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Solution

The fourth proportional to 123,080.54, 169,852.21 and 69,355.26 is: 95,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,080.54 : 169,852.21 = 69,355.26 : x
  2. Step 2: Convert to fraction form
    123,080.54/169,852.21 = 69,355.26/x
  3. Step 3: Cross multiply
    123,080.54x = 169,852.21 × 69,355.26
  4. Step 4: Simplify right side
    123,080.54x = 11,780,144,012.74
  5. Step 5: Solve for x
    x = 11,780,144,012.74/123,080.54
  6. Step 6: Final answer
    x = 95,710.86

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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.