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Finding the Fourth Proportional to 192,710.69, 265,876.16 and 112,120.96

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Solution

The fourth proportional to 192,710.69, 265,876.16 and 112,120.96 is: 154,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,710.69 : 265,876.16 = 112,120.96 : x
  2. Step 2: Convert to fraction form
    192,710.69/265,876.16 = 112,120.96/x
  3. Step 3: Cross multiply
    192,710.69x = 265,876.16 × 112,120.96
  4. Step 4: Simplify right side
    192,710.69x = 29,810,289,915.93
  5. Step 5: Solve for x
    x = 29,810,289,915.93/192,710.69
  6. Step 6: Final answer
    x = 154,689.34

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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.