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Finding the Fourth Proportional to 186,657,604.60, 279,986,406.90 and 147,690,513.40

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Solution

The fourth proportional to 186,657,604.60, 279,986,406.90 and 147,690,513.40 is: 221,535,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,657,604.60 : 279,986,406.90 = 147,690,513.40 : x
  2. Step 2: Convert to fraction form
    186,657,604.60/279,986,406.90 = 147,690,513.40/x
  3. Step 3: Cross multiply
    186,657,604.60x = 279,986,406.90 × 147,690,513.40
  4. Step 4: Simplify right side
    186,657,604.60x = 41,351,336,180,082,304
  5. Step 5: Solve for x
    x = 41,351,336,180,082,304/186,657,604.60
  6. Step 6: Final answer
    x = 221,535,770.10

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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.