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Finding the Fourth Proportional to 121,525.56, 167,704.97 and 67,810.01

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Solution

The fourth proportional to 121,525.56, 167,704.97 and 67,810.01 is: 93,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,525.56 : 167,704.97 = 67,810.01 : x
  2. Step 2: Convert to fraction form
    121,525.56/167,704.97 = 67,810.01/x
  3. Step 3: Cross multiply
    121,525.56x = 167,704.97 × 67,810.01
  4. Step 4: Simplify right side
    121,525.56x = 11,372,074,515.17
  5. Step 5: Solve for x
    x = 11,372,074,515.17/121,525.56
  6. Step 6: Final answer
    x = 93,577.64

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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.