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Finding the Fourth Proportional to 121,075.97, 167,069.79 and 67,357.17

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Solution

The fourth proportional to 121,075.97, 167,069.79 and 67,357.17 is: 92,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,075.97 : 167,069.79 = 67,357.17 : x
  2. Step 2: Convert to fraction form
    121,075.97/167,069.79 = 67,357.17/x
  3. Step 3: Cross multiply
    121,075.97x = 167,069.79 × 67,357.17
  4. Step 4: Simplify right side
    121,075.97x = 11,253,348,246.89
  5. Step 5: Solve for x
    x = 11,253,348,246.89/121,075.97
  6. Step 6: Final answer
    x = 92,944.53

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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.