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Finding the Fourth Proportional to 74,746,676.80, 111,907,438.80 and 57,598,847.20

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Solution

The fourth proportional to 74,746,676.80, 111,907,438.80 and 57,598,847.20 is: 86,234,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,746,676.80 : 111,907,438.80 = 57,598,847.20 : x
  2. Step 2: Convert to fraction form
    74,746,676.80/111,907,438.80 = 57,598,847.20/x
  3. Step 3: Cross multiply
    74,746,676.80x = 111,907,438.80 × 57,598,847.20
  4. Step 4: Simplify right side
    74,746,676.80x = 6,445,739,467,984,552
  5. Step 5: Solve for x
    x = 6,445,739,467,984,552/74,746,676.80
  6. Step 6: Final answer
    x = 86,234,462.11

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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.