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Finding the Fourth Proportional to 186,867,793.80, 280,301,690.70 and 83,236,798.80

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Solution

The fourth proportional to 186,867,793.80, 280,301,690.70 and 83,236,798.80 is: 124,855,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,867,793.80 : 280,301,690.70 = 83,236,798.80 : x
  2. Step 2: Convert to fraction form
    186,867,793.80/280,301,690.70 = 83,236,798.80/x
  3. Step 3: Cross multiply
    186,867,793.80x = 280,301,690.70 × 83,236,798.80
  4. Step 4: Simplify right side
    186,867,793.80x = 23,331,415,432,095,728
  5. Step 5: Solve for x
    x = 23,331,415,432,095,728/186,867,793.80
  6. Step 6: Final answer
    x = 124,855,198.20

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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.