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Finding the Fourth Proportional to 188,786, 283,222.80 and 64,127.12

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Solution

The fourth proportional to 188,786, 283,222.80 and 64,127.12 is: 96,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,786 : 283,222.80 = 64,127.12 : x
  2. Step 2: Convert to fraction form
    188,786/283,222.80 = 64,127.12/x
  3. Step 3: Cross multiply
    188,786x = 283,222.80 × 64,127.12
  4. Step 4: Simplify right side
    188,786x = 18,162,262,482.34
  5. Step 5: Solve for x
    x = 18,162,262,482.34/188,786
  6. Step 6: Final answer
    x = 96,205.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.