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Finding the Fourth Proportional to 120,996,900.40, 181,566,209.40 and 44,327,678.80

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Solution

The fourth proportional to 120,996,900.40, 181,566,209.40 and 44,327,678.80 is: 66,517,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,996,900.40 : 181,566,209.40 = 44,327,678.80 : x
  2. Step 2: Convert to fraction form
    120,996,900.40/181,566,209.40 = 44,327,678.80/x
  3. Step 3: Cross multiply
    120,996,900.40x = 181,566,209.40 × 44,327,678.80
  4. Step 4: Simplify right side
    120,996,900.40x = 8,048,408,611,216,740
  5. Step 5: Solve for x
    x = 8,048,408,611,216,740/120,996,900.40
  6. Step 6: Final answer
    x = 66,517,477.59

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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.