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Finding the Fourth Proportional to 150,156,223.20, 210,672,208.80 and 150,156,223.20

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Solution

The fourth proportional to 150,156,223.20, 210,672,208.80 and 150,156,223.20 is: 210,672,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,156,223.20 : 210,672,208.80 = 150,156,223.20 : x
  2. Step 2: Convert to fraction form
    150,156,223.20/210,672,208.80 = 150,156,223.20/x
  3. Step 3: Cross multiply
    150,156,223.20x = 210,672,208.80 × 150,156,223.20
  4. Step 4: Simplify right side
    150,156,223.20x = 31,633,743,206,609,804
  5. Step 5: Solve for x
    x = 31,633,743,206,609,804/150,156,223.20
  6. Step 6: Final answer
    x = 210,672,208.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.