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Finding the Fourth Proportional to 366,996,978.45, 550,495,467.68 and 148,751,874.45

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Solution

The fourth proportional to 366,996,978.45, 550,495,467.68 and 148,751,874.45 is: 223,127,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,996,978.45 : 550,495,467.68 = 148,751,874.45 : x
  2. Step 2: Convert to fraction form
    366,996,978.45/550,495,467.68 = 148,751,874.45/x
  3. Step 3: Cross multiply
    366,996,978.45x = 550,495,467.68 × 148,751,874.45
  4. Step 4: Simplify right side
    366,996,978.45x = 81,887,232,692,885,616
  5. Step 5: Solve for x
    x = 81,887,232,692,885,616/366,996,978.45
  6. Step 6: Final answer
    x = 223,127,811.68

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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.