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Finding the Fourth Proportional to 60,325.60, 90,342.60 and 57,701.20

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Solution

The fourth proportional to 60,325.60, 90,342.60 and 57,701.20 is: 86,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,325.60 : 90,342.60 = 57,701.20 : x
  2. Step 2: Convert to fraction form
    60,325.60/90,342.60 = 57,701.20/x
  3. Step 3: Cross multiply
    60,325.60x = 90,342.60 × 57,701.20
  4. Step 4: Simplify right side
    60,325.60x = 5,212,876,431.12
  5. Step 5: Solve for x
    x = 5,212,876,431.12/60,325.60
  6. Step 6: Final answer
    x = 86,412.34

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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.