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Finding the Fourth Proportional to 168,683,731.60, 253,025,597.40 and 100,603,296.40

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Solution

The fourth proportional to 168,683,731.60, 253,025,597.40 and 100,603,296.40 is: 150,904,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,683,731.60 : 253,025,597.40 = 100,603,296.40 : x
  2. Step 2: Convert to fraction form
    168,683,731.60/253,025,597.40 = 100,603,296.40/x
  3. Step 3: Cross multiply
    168,683,731.60x = 253,025,597.40 × 100,603,296.40
  4. Step 4: Simplify right side
    168,683,731.60x = 25,455,209,172,019,272
  5. Step 5: Solve for x
    x = 25,455,209,172,019,272/168,683,731.60
  6. Step 6: Final answer
    x = 150,904,944.60

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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.