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Finding the Fourth Proportional to 60,502.31, 90,771.93 and 30,940.91

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Solution

The fourth proportional to 60,502.31, 90,771.93 and 30,940.91 is: 46,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,502.31 : 90,771.93 = 30,940.91 : x
  2. Step 2: Convert to fraction form
    60,502.31/90,771.93 = 30,940.91/x
  3. Step 3: Cross multiply
    60,502.31x = 90,771.93 × 30,940.91
  4. Step 4: Simplify right side
    60,502.31x = 2,808,566,116.66
  5. Step 5: Solve for x
    x = 2,808,566,116.66/60,502.31
  6. Step 6: Final answer
    x = 46,420.81

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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.