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Finding the Fourth Proportional to 424,907.56, 637,066.09 and 188,121.07

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Solution

The fourth proportional to 424,907.56, 637,066.09 and 188,121.07 is: 282,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,907.56 : 637,066.09 = 188,121.07 : x
  2. Step 2: Convert to fraction form
    424,907.56/637,066.09 = 188,121.07/x
  3. Step 3: Cross multiply
    424,907.56x = 637,066.09 × 188,121.07
  4. Step 4: Simplify right side
    424,907.56x = 119,845,554,511.52
  5. Step 5: Solve for x
    x = 119,845,554,511.52/424,907.56
  6. Step 6: Final answer
    x = 282,050.89

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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.