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Finding the Fourth Proportional to 60,231.79, 90,430.44 and 30,669.49

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Solution

The fourth proportional to 60,231.79, 90,430.44 and 30,669.49 is: 46,046.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,231.79 : 90,430.44 = 30,669.49 : x
  2. Step 2: Convert to fraction form
    60,231.79/90,430.44 = 30,669.49/x
  3. Step 3: Cross multiply
    60,231.79x = 90,430.44 × 30,669.49
  4. Step 4: Simplify right side
    60,231.79x = 2,773,455,475.28
  5. Step 5: Solve for x
    x = 2,773,455,475.28/60,231.79
  6. Step 6: Final answer
    x = 46,046.37

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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.