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Finding the Fourth Proportional to 266,112,401.20, 399,168,601.80 and 151,450,615.60

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Solution

The fourth proportional to 266,112,401.20, 399,168,601.80 and 151,450,615.60 is: 227,175,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,112,401.20 : 399,168,601.80 = 151,450,615.60 : x
  2. Step 2: Convert to fraction form
    266,112,401.20/399,168,601.80 = 151,450,615.60/x
  3. Step 3: Cross multiply
    266,112,401.20x = 399,168,601.80 × 151,450,615.60
  4. Step 4: Simplify right side
    266,112,401.20x = 60,454,330,470,801,264
  5. Step 5: Solve for x
    x = 60,454,330,470,801,264/266,112,401.20
  6. Step 6: Final answer
    x = 227,175,923.40

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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.