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Finding the Fourth Proportional to 71,444.21, 107,165.21 and 17,409.51

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Solution

The fourth proportional to 71,444.21, 107,165.21 and 17,409.51 is: 26,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,444.21 : 107,165.21 = 17,409.51 : x
  2. Step 2: Convert to fraction form
    71,444.21/107,165.21 = 17,409.51/x
  3. Step 3: Cross multiply
    71,444.21x = 107,165.21 × 17,409.51
  4. Step 4: Simplify right side
    71,444.21x = 1,865,693,708.10
  5. Step 5: Solve for x
    x = 1,865,693,708.10/71,444.21
  6. Step 6: Final answer
    x = 26,114.00

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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.