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Finding the Fourth Proportional to 219,628, 303,087.72 and 119,026

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Solution

The fourth proportional to 219,628, 303,087.72 and 119,026 is: 164,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,628 : 303,087.72 = 119,026 : x
  2. Step 2: Convert to fraction form
    219,628/303,087.72 = 119,026/x
  3. Step 3: Cross multiply
    219,628x = 303,087.72 × 119,026
  4. Step 4: Simplify right side
    219,628x = 36,075,318,960.72
  5. Step 5: Solve for x
    x = 36,075,318,960.72/219,628
  6. Step 6: Final answer
    x = 164,256.47

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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.