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Finding the Fourth Proportional to 108,352,420.33, 149,518,978.89 and 59,462,997.61

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Solution

The fourth proportional to 108,352,420.33, 149,518,978.89 and 59,462,997.61 is: 82,054,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,352,420.33 : 149,518,978.89 = 59,462,997.61 : x
  2. Step 2: Convert to fraction form
    108,352,420.33/149,518,978.89 = 59,462,997.61/x
  3. Step 3: Cross multiply
    108,352,420.33x = 149,518,978.89 × 59,462,997.61
  4. Step 4: Simplify right side
    108,352,420.33x = 8,890,846,684,385,710
  5. Step 5: Solve for x
    x = 8,890,846,684,385,710/108,352,420.33
  6. Step 6: Final answer
    x = 82,054,896.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.