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Finding the Fourth Proportional to 192,415.70, 265,503.89 and 107,516.36

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Solution

The fourth proportional to 192,415.70, 265,503.89 and 107,516.36 is: 148,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,415.70 : 265,503.89 = 107,516.36 : x
  2. Step 2: Convert to fraction form
    192,415.70/265,503.89 = 107,516.36/x
  3. Step 3: Cross multiply
    192,415.70x = 265,503.89 × 107,516.36
  4. Step 4: Simplify right side
    192,415.70x = 28,546,012,751.19
  5. Step 5: Solve for x
    x = 28,546,012,751.19/192,415.70
  6. Step 6: Final answer
    x = 148,355.94

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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.