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Finding the Fourth Proportional to 192,511.76, 287,357.60 and 169,786.40

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Solution

The fourth proportional to 192,511.76, 287,357.60 and 169,786.40 is: 253,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,511.76 : 287,357.60 = 169,786.40 : x
  2. Step 2: Convert to fraction form
    192,511.76/287,357.60 = 169,786.40/x
  3. Step 3: Cross multiply
    192,511.76x = 287,357.60 × 169,786.40
  4. Step 4: Simplify right side
    192,511.76x = 48,789,410,130.92
  5. Step 5: Solve for x
    x = 48,789,410,130.92/192,511.76
  6. Step 6: Final answer
    x = 253,436.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.