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Finding the Fourth Proportional to 43,740,901.80, 65,611,352.70 and 13,448,764.80

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Solution

The fourth proportional to 43,740,901.80, 65,611,352.70 and 13,448,764.80 is: 20,173,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,740,901.80 : 65,611,352.70 = 13,448,764.80 : x
  2. Step 2: Convert to fraction form
    43,740,901.80/65,611,352.70 = 13,448,764.80/x
  3. Step 3: Cross multiply
    43,740,901.80x = 65,611,352.70 × 13,448,764.80
  4. Step 4: Simplify right side
    43,740,901.80x = 882,391,650,672,145
  5. Step 5: Solve for x
    x = 882,391,650,672,145/43,740,901.80
  6. Step 6: Final answer
    x = 20,173,147.20

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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.