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Finding the Fourth Proportional to 124,787,278.80, 186,755,765.40 and 124,787,278.80

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Solution

The fourth proportional to 124,787,278.80, 186,755,765.40 and 124,787,278.80 is: 186,755,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,787,278.80 : 186,755,765.40 = 124,787,278.80 : x
  2. Step 2: Convert to fraction form
    124,787,278.80/186,755,765.40 = 124,787,278.80/x
  3. Step 3: Cross multiply
    124,787,278.80x = 186,755,765.40 × 124,787,278.80
  4. Step 4: Simplify right side
    124,787,278.80x = 23,304,743,764,477,192
  5. Step 5: Solve for x
    x = 23,304,743,764,477,192/124,787,278.80
  6. Step 6: Final answer
    x = 186,755,765.40

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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.