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Finding the Fourth Proportional to 159,898,280.40, 239,847,420.60 and 159,898,280.40

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Solution

The fourth proportional to 159,898,280.40, 239,847,420.60 and 159,898,280.40 is: 239,847,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898,280.40 : 239,847,420.60 = 159,898,280.40 : x
  2. Step 2: Convert to fraction form
    159,898,280.40/239,847,420.60 = 159,898,280.40/x
  3. Step 3: Cross multiply
    159,898,280.40x = 239,847,420.60 × 159,898,280.40
  4. Step 4: Simplify right side
    159,898,280.40x = 38,351,190,112,315,536
  5. Step 5: Solve for x
    x = 38,351,190,112,315,536/159,898,280.40
  6. Step 6: Final answer
    x = 239,847,420.60

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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.