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Finding the Fourth Proportional to 559,968.45, 839,955.72 and 139,244.33

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Solution

The fourth proportional to 559,968.45, 839,955.72 and 139,244.33 is: 208,867.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,968.45 : 839,955.72 = 139,244.33 : x
  2. Step 2: Convert to fraction form
    559,968.45/839,955.72 = 139,244.33/x
  3. Step 3: Cross multiply
    559,968.45x = 839,955.72 × 139,244.33
  4. Step 4: Simplify right side
    559,968.45x = 116,959,067,261.29
  5. Step 5: Solve for x
    x = 116,959,067,261.29/559,968.45
  6. Step 6: Final answer
    x = 208,867.24

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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.