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Finding the Fourth Proportional to 90,094.97, 135,145.87 and 26,915.96

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Solution

The fourth proportional to 90,094.97, 135,145.87 and 26,915.96 is: 40,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,094.97 : 135,145.87 = 26,915.96 : x
  2. Step 2: Convert to fraction form
    90,094.97/135,145.87 = 26,915.96/x
  3. Step 3: Cross multiply
    90,094.97x = 135,145.87 × 26,915.96
  4. Step 4: Simplify right side
    90,094.97x = 3,637,580,088.07
  5. Step 5: Solve for x
    x = 3,637,580,088.07/90,094.97
  6. Step 6: Final answer
    x = 40,374.95

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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.