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Finding the Fourth Proportional to 237,788,978.40, 356,683,467.60 and 108,648,815.40

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Solution

The fourth proportional to 237,788,978.40, 356,683,467.60 and 108,648,815.40 is: 162,973,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,788,978.40 : 356,683,467.60 = 108,648,815.40 : x
  2. Step 2: Convert to fraction form
    237,788,978.40/356,683,467.60 = 108,648,815.40/x
  3. Step 3: Cross multiply
    237,788,978.40x = 356,683,467.60 × 108,648,815.40
  4. Step 4: Simplify right side
    237,788,978.40x = 38,753,236,227,504,288
  5. Step 5: Solve for x
    x = 38,753,236,227,504,288/237,788,978.40
  6. Step 6: Final answer
    x = 162,973,223.10

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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.