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Finding the Fourth Proportional to 60,203.47, 90,309.53 and 20,760.01

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Solution

The fourth proportional to 60,203.47, 90,309.53 and 20,760.01 is: 31,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,203.47 : 90,309.53 = 20,760.01 : x
  2. Step 2: Convert to fraction form
    60,203.47/90,309.53 = 20,760.01/x
  3. Step 3: Cross multiply
    60,203.47x = 90,309.53 × 20,760.01
  4. Step 4: Simplify right side
    60,203.47x = 1,874,827,080.01
  5. Step 5: Solve for x
    x = 1,874,827,080.01/60,203.47
  6. Step 6: Final answer
    x = 31,141.51

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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.