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Finding the Fourth Proportional to 192,612.80, 265,804.14 and 107,729.80

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Solution

The fourth proportional to 192,612.80, 265,804.14 and 107,729.80 is: 148,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,612.80 : 265,804.14 = 107,729.80 : x
  2. Step 2: Convert to fraction form
    192,612.80/265,804.14 = 107,729.80/x
  3. Step 3: Cross multiply
    192,612.80x = 265,804.14 × 107,729.80
  4. Step 4: Simplify right side
    192,612.80x = 28,635,026,841.37
  5. Step 5: Solve for x
    x = 28,635,026,841.37/192,612.80
  6. Step 6: Final answer
    x = 148,666.27

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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.