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Finding the Fourth Proportional to 70,133.14, 105,199.71 and 17,542.63

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Solution

The fourth proportional to 70,133.14, 105,199.71 and 17,542.63 is: 26,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,133.14 : 105,199.71 = 17,542.63 : x
  2. Step 2: Convert to fraction form
    70,133.14/105,199.71 = 17,542.63/x
  3. Step 3: Cross multiply
    70,133.14x = 105,199.71 × 17,542.63
  4. Step 4: Simplify right side
    70,133.14x = 1,845,479,161.28
  5. Step 5: Solve for x
    x = 1,845,479,161.28/70,133.14
  6. Step 6: Final answer
    x = 26,313.94

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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.