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Finding the Fourth Proportional to 556,048.40, 834,072.68 and 135,324.28

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Solution

The fourth proportional to 556,048.40, 834,072.68 and 135,324.28 is: 202,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,048.40 : 834,072.68 = 135,324.28 : x
  2. Step 2: Convert to fraction form
    556,048.40/834,072.68 = 135,324.28/x
  3. Step 3: Cross multiply
    556,048.40x = 834,072.68 × 135,324.28
  4. Step 4: Simplify right side
    556,048.40x = 112,870,284,888.67
  5. Step 5: Solve for x
    x = 112,870,284,888.67/556,048.40
  6. Step 6: Final answer
    x = 202,986.44

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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.