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Finding the Fourth Proportional to 92,915.22, 128,220.26 and 50,473.64

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Solution

The fourth proportional to 92,915.22, 128,220.26 and 50,473.64 is: 69,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,915.22 : 128,220.26 = 50,473.64 : x
  2. Step 2: Convert to fraction form
    92,915.22/128,220.26 = 50,473.64/x
  3. Step 3: Cross multiply
    92,915.22x = 128,220.26 × 50,473.64
  4. Step 4: Simplify right side
    92,915.22x = 6,471,743,243.95
  5. Step 5: Solve for x
    x = 6,471,743,243.95/92,915.22
  6. Step 6: Final answer
    x = 69,652.13

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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.