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Finding the Fourth Proportional to 92,840.79, 139,268.93 and 29,669.90

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Solution

The fourth proportional to 92,840.79, 139,268.93 and 29,669.90 is: 44,507.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,840.79 : 139,268.93 = 29,669.90 : x
  2. Step 2: Convert to fraction form
    92,840.79/139,268.93 = 29,669.90/x
  3. Step 3: Cross multiply
    92,840.79x = 139,268.93 × 29,669.90
  4. Step 4: Simplify right side
    92,840.79x = 4,132,095,226.21
  5. Step 5: Solve for x
    x = 4,132,095,226.21/92,840.79
  6. Step 6: Final answer
    x = 44,507.33

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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.