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Finding the Fourth Proportional to 237,817.60, 356,726.40 and 71,605.60

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Solution

The fourth proportional to 237,817.60, 356,726.40 and 71,605.60 is: 107,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,817.60 : 356,726.40 = 71,605.60 : x
  2. Step 2: Convert to fraction form
    237,817.60/356,726.40 = 71,605.60/x
  3. Step 3: Cross multiply
    237,817.60x = 356,726.40 × 71,605.60
  4. Step 4: Simplify right side
    237,817.60x = 25,543,607,907.84
  5. Step 5: Solve for x
    x = 25,543,607,907.84/237,817.60
  6. Step 6: Final answer
    x = 107,408.40

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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.