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Finding the Fourth Proportional to 91,225.53, 136,837.35 and 28,896.03

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Solution

The fourth proportional to 91,225.53, 136,837.35 and 28,896.03 is: 43,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,225.53 : 136,837.35 = 28,896.03 : x
  2. Step 2: Convert to fraction form
    91,225.53/136,837.35 = 28,896.03/x
  3. Step 3: Cross multiply
    91,225.53x = 136,837.35 × 28,896.03
  4. Step 4: Simplify right side
    91,225.53x = 3,954,056,170.72
  5. Step 5: Solve for x
    x = 3,954,056,170.72/91,225.53
  6. Step 6: Final answer
    x = 43,343.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.