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Finding the Fourth Proportional to 90,090.74, 135,123.95 and 23,525.48

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Solution

The fourth proportional to 90,090.74, 135,123.95 and 23,525.48 is: 35,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,090.74 : 135,123.95 = 23,525.48 : x
  2. Step 2: Convert to fraction form
    90,090.74/135,123.95 = 23,525.48/x
  3. Step 3: Cross multiply
    90,090.74x = 135,123.95 × 23,525.48
  4. Step 4: Simplify right side
    90,090.74x = 3,178,854,990.00
  5. Step 5: Solve for x
    x = 3,178,854,990.00/90,090.74
  6. Step 6: Final answer
    x = 35,285.04

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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.