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Finding the Fourth Proportional to 91,835.60, 137,490.60 and 56,537.60

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Solution

The fourth proportional to 91,835.60, 137,490.60 and 56,537.60 is: 84,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,835.60 : 137,490.60 = 56,537.60 : x
  2. Step 2: Convert to fraction form
    91,835.60/137,490.60 = 56,537.60/x
  3. Step 3: Cross multiply
    91,835.60x = 137,490.60 × 56,537.60
  4. Step 4: Simplify right side
    91,835.60x = 7,773,388,546.56
  5. Step 5: Solve for x
    x = 7,773,388,546.56/91,835.60
  6. Step 6: Final answer
    x = 84,644.61

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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.