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Finding the Fourth Proportional to 114,662.51, 158,309.21 and 74,490.77

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Solution

The fourth proportional to 114,662.51, 158,309.21 and 74,490.77 is: 102,845.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,662.51 : 158,309.21 = 74,490.77 : x
  2. Step 2: Convert to fraction form
    114,662.51/158,309.21 = 74,490.77/x
  3. Step 3: Cross multiply
    114,662.51x = 158,309.21 × 74,490.77
  4. Step 4: Simplify right side
    114,662.51x = 11,792,574,066.33
  5. Step 5: Solve for x
    x = 11,792,574,066.33/114,662.51
  6. Step 6: Final answer
    x = 102,845.94

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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.