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Finding the Fourth Proportional to 69,408,748.80, 104,113,123.20 and 33,576,940.80

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Solution

The fourth proportional to 69,408,748.80, 104,113,123.20 and 33,576,940.80 is: 50,365,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408,748.80 : 104,113,123.20 = 33,576,940.80 : x
  2. Step 2: Convert to fraction form
    69,408,748.80/104,113,123.20 = 33,576,940.80/x
  3. Step 3: Cross multiply
    69,408,748.80x = 104,113,123.20 × 33,576,940.80
  4. Step 4: Simplify right side
    69,408,748.80x = 3,495,800,174,189,506.50
  5. Step 5: Solve for x
    x = 3,495,800,174,189,506.50/69,408,748.80
  6. Step 6: Final answer
    x = 50,365,411.20

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1.5x scale

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.