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Finding the Fourth Proportional to 103,995,863.60, 155,993,795.40 and 73,762,775.60

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Solution

The fourth proportional to 103,995,863.60, 155,993,795.40 and 73,762,775.60 is: 110,644,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,995,863.60 : 155,993,795.40 = 73,762,775.60 : x
  2. Step 2: Convert to fraction form
    103,995,863.60/155,993,795.40 = 73,762,775.60/x
  3. Step 3: Cross multiply
    103,995,863.60x = 155,993,795.40 × 73,762,775.60
  4. Step 4: Simplify right side
    103,995,863.60x = 11,506,535,325,082,512
  5. Step 5: Solve for x
    x = 11,506,535,325,082,512/103,995,863.60
  6. Step 6: Final answer
    x = 110,644,163.40

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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.