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Finding the Fourth Proportional to 73,147,429.20, 102,272,031.60 and 73,147,429.20

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Solution

The fourth proportional to 73,147,429.20, 102,272,031.60 and 73,147,429.20 is: 102,272,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,147,429.20 : 102,272,031.60 = 73,147,429.20 : x
  2. Step 2: Convert to fraction form
    73,147,429.20/102,272,031.60 = 73,147,429.20/x
  3. Step 3: Cross multiply
    73,147,429.20x = 102,272,031.60 × 73,147,429.20
  4. Step 4: Simplify right side
    73,147,429.20x = 7,480,936,190,601,163
  5. Step 5: Solve for x
    x = 7,480,936,190,601,163/73,147,429.20
  6. Step 6: Final answer
    x = 102,272,031.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.