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Finding the Fourth Proportional to 70,546.69, 105,818.66 and 17,239.02

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Solution

The fourth proportional to 70,546.69, 105,818.66 and 17,239.02 is: 25,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,546.69 : 105,818.66 = 17,239.02 : x
  2. Step 2: Convert to fraction form
    70,546.69/105,818.66 = 17,239.02/x
  3. Step 3: Cross multiply
    70,546.69x = 105,818.66 × 17,239.02
  4. Step 4: Simplify right side
    70,546.69x = 1,824,209,996.11
  5. Step 5: Solve for x
    x = 1,824,209,996.11/70,546.69
  6. Step 6: Final answer
    x = 25,858.19

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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.