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Finding the Fourth Proportional to 186,609,692.80, 279,895,639.92 and 50,308,854.40

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Solution

The fourth proportional to 186,609,692.80, 279,895,639.92 and 50,308,854.40 is: 75,458,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,609,692.80 : 279,895,639.92 = 50,308,854.40 : x
  2. Step 2: Convert to fraction form
    186,609,692.80/279,895,639.92 = 50,308,854.40/x
  3. Step 3: Cross multiply
    186,609,692.80x = 279,895,639.92 × 50,308,854.40
  4. Step 4: Simplify right side
    186,609,692.80x = 14,081,228,995,930,108
  5. Step 5: Solve for x
    x = 14,081,228,995,930,108/186,609,692.80
  6. Step 6: Final answer
    x = 75,458,186.47

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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.