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Finding the Fourth Proportional to 192,070.80, 265,082.78 and 107,205.48

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Solution

The fourth proportional to 192,070.80, 265,082.78 and 107,205.48 is: 147,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,070.80 : 265,082.78 = 107,205.48 : x
  2. Step 2: Convert to fraction form
    192,070.80/265,082.78 = 107,205.48/x
  3. Step 3: Cross multiply
    192,070.80x = 265,082.78 × 107,205.48
  4. Step 4: Simplify right side
    192,070.80x = 28,418,326,133.61
  5. Step 5: Solve for x
    x = 28,418,326,133.61/192,070.80
  6. Step 6: Final answer
    x = 147,957.56

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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.