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Finding the Fourth Proportional to 31,203.10, 43,762.10 and 31,203.10

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Solution

The fourth proportional to 31,203.10, 43,762.10 and 31,203.10 is: 43,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,203.10 : 43,762.10 = 31,203.10 : x
  2. Step 2: Convert to fraction form
    31,203.10/43,762.10 = 31,203.10/x
  3. Step 3: Cross multiply
    31,203.10x = 43,762.10 × 31,203.10
  4. Step 4: Simplify right side
    31,203.10x = 1,365,513,182.51
  5. Step 5: Solve for x
    x = 1,365,513,182.51/31,203.10
  6. Step 6: Final answer
    x = 43,762.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.