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Finding the Fourth Proportional to 240,056, 331,277.28 and 134,072

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Solution

The fourth proportional to 240,056, 331,277.28 and 134,072 is: 185,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,056 : 331,277.28 = 134,072 : x
  2. Step 2: Convert to fraction form
    240,056/331,277.28 = 134,072/x
  3. Step 3: Cross multiply
    240,056x = 331,277.28 × 134,072
  4. Step 4: Simplify right side
    240,056x = 44,415,007,484.16
  5. Step 5: Solve for x
    x = 44,415,007,484.16/240,056
  6. Step 6: Final answer
    x = 185,019.36

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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.