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Finding the Fourth Proportional to 341,792,654.40, 512,702,978.40 and 99,455,558.40

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Solution

The fourth proportional to 341,792,654.40, 512,702,978.40 and 99,455,558.40 is: 149,187,410.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,792,654.40 : 512,702,978.40 = 99,455,558.40 : x
  2. Step 2: Convert to fraction form
    341,792,654.40/512,702,978.40 = 99,455,558.40/x
  3. Step 3: Cross multiply
    341,792,654.40x = 512,702,978.40 × 99,455,558.40
  4. Step 4: Simplify right side
    341,792,654.40x = 50,991,161,010,115,136
  5. Step 5: Solve for x
    x = 50,991,161,010,115,136/341,792,654.40
  6. Step 6: Final answer
    x = 149,187,410.42

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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.