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Finding the Fourth Proportional to 139,464.66, 192,463.40 and 75,802.60

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Solution

The fourth proportional to 139,464.66, 192,463.40 and 75,802.60 is: 104,608.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,464.66 : 192,463.40 = 75,802.60 : x
  2. Step 2: Convert to fraction form
    139,464.66/192,463.40 = 75,802.60/x
  3. Step 3: Cross multiply
    139,464.66x = 192,463.40 × 75,802.60
  4. Step 4: Simplify right side
    139,464.66x = 14,589,226,124.84
  5. Step 5: Solve for x
    x = 14,589,226,124.84/139,464.66
  6. Step 6: Final answer
    x = 104,608.77

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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.