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Finding the Fourth Proportional to 186,751,855.80, 280,127,783.70 and 132,226,009.20

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Solution

The fourth proportional to 186,751,855.80, 280,127,783.70 and 132,226,009.20 is: 198,339,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,751,855.80 : 280,127,783.70 = 132,226,009.20 : x
  2. Step 2: Convert to fraction form
    186,751,855.80/280,127,783.70 = 132,226,009.20/x
  3. Step 3: Cross multiply
    186,751,855.80x = 280,127,783.70 × 132,226,009.20
  4. Step 4: Simplify right side
    186,751,855.80x = 37,040,178,904,691,808
  5. Step 5: Solve for x
    x = 37,040,178,904,691,808/186,751,855.80
  6. Step 6: Final answer
    x = 198,339,013.80

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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.