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Finding the Fourth Proportional to 60,090.28, 90,223.02 and 42,652.60

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Solution

The fourth proportional to 60,090.28, 90,223.02 and 42,652.60 is: 64,041.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,090.28 : 90,223.02 = 42,652.60 : x
  2. Step 2: Convert to fraction form
    60,090.28/90,223.02 = 42,652.60/x
  3. Step 3: Cross multiply
    60,090.28x = 90,223.02 × 42,652.60
  4. Step 4: Simplify right side
    60,090.28x = 3,848,246,382.85
  5. Step 5: Solve for x
    x = 3,848,246,382.85/60,090.28
  6. Step 6: Final answer
    x = 64,041.08

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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.