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Finding the Fourth Proportional to 97,090.92, 133,989.78 and 54,652.20

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Solution

The fourth proportional to 97,090.92, 133,989.78 and 54,652.20 is: 75,422.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,090.92 : 133,989.78 = 54,652.20 : x
  2. Step 2: Convert to fraction form
    97,090.92/133,989.78 = 54,652.20/x
  3. Step 3: Cross multiply
    97,090.92x = 133,989.78 × 54,652.20
  4. Step 4: Simplify right side
    97,090.92x = 7,322,836,254.52
  5. Step 5: Solve for x
    x = 7,322,836,254.52/97,090.92
  6. Step 6: Final answer
    x = 75,422.46

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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.