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Finding the Fourth Proportional to 192,398.50, 265,509.48 and 107,515.56

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Solution

The fourth proportional to 192,398.50, 265,509.48 and 107,515.56 is: 148,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,398.50 : 265,509.48 = 107,515.56 : x
  2. Step 2: Convert to fraction form
    192,398.50/265,509.48 = 107,515.56/x
  3. Step 3: Cross multiply
    192,398.50x = 265,509.48 × 107,515.56
  4. Step 4: Simplify right side
    192,398.50x = 28,546,400,427.51
  5. Step 5: Solve for x
    x = 28,546,400,427.51/192,398.50
  6. Step 6: Final answer
    x = 148,371.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.