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Finding the Fourth Proportional to 424,999, 637,607.94 and 158,761.36

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Solution

The fourth proportional to 424,999, 637,607.94 and 158,761.36 is: 238,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,999 : 637,607.94 = 158,761.36 : x
  2. Step 2: Convert to fraction form
    424,999/637,607.94 = 158,761.36/x
  3. Step 3: Cross multiply
    424,999x = 637,607.94 × 158,761.36
  4. Step 4: Simplify right side
    424,999x = 101,227,503,701.20
  5. Step 5: Solve for x
    x = 101,227,503,701.20/424,999
  6. Step 6: Final answer
    x = 238,182.92

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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.