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Finding the Fourth Proportional to 230,218.40, 317,716.44 and 139,582.64

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Solution

The fourth proportional to 230,218.40, 317,716.44 and 139,582.64 is: 192,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,218.40 : 317,716.44 = 139,582.64 : x
  2. Step 2: Convert to fraction form
    230,218.40/317,716.44 = 139,582.64/x
  3. Step 3: Cross multiply
    230,218.40x = 317,716.44 × 139,582.64
  4. Step 4: Simplify right side
    230,218.40x = 44,347,699,466.60
  5. Step 5: Solve for x
    x = 44,347,699,466.60/230,218.40
  6. Step 6: Final answer
    x = 192,633.17

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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.