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Finding the Fourth Proportional to 60,440,240.80, 90,467,467.80 and 47,685,656.80

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Solution

The fourth proportional to 60,440,240.80, 90,467,467.80 and 47,685,656.80 is: 71,376,297.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,440,240.80 : 90,467,467.80 = 47,685,656.80 : x
  2. Step 2: Convert to fraction form
    60,440,240.80/90,467,467.80 = 47,685,656.80/x
  3. Step 3: Cross multiply
    60,440,240.80x = 90,467,467.80 × 47,685,656.80
  4. Step 4: Simplify right side
    60,440,240.80x = 4,314,000,621,075,850.50
  5. Step 5: Solve for x
    x = 4,314,000,621,075,850.50/60,440,240.80
  6. Step 6: Final answer
    x = 71,376,297.71

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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.