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Finding the Fourth Proportional to 159,651,965.20, 239,477,947.80 and 159,651,965.20

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Solution

The fourth proportional to 159,651,965.20, 239,477,947.80 and 159,651,965.20 is: 239,477,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651,965.20 : 239,477,947.80 = 159,651,965.20 : x
  2. Step 2: Convert to fraction form
    159,651,965.20/239,477,947.80 = 159,651,965.20/x
  3. Step 3: Cross multiply
    159,651,965.20x = 239,477,947.80 × 159,651,965.20
  4. Step 4: Simplify right side
    159,651,965.20x = 38,233,124,988,333,016
  5. Step 5: Solve for x
    x = 38,233,124,988,333,016/159,651,965.20
  6. Step 6: Final answer
    x = 239,477,947.80

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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.