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Finding the Fourth Proportional to 113,784.50, 157,021.50 and 62,797.70

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Solution

The fourth proportional to 113,784.50, 157,021.50 and 62,797.70 is: 86,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,784.50 : 157,021.50 = 62,797.70 : x
  2. Step 2: Convert to fraction form
    113,784.50/157,021.50 = 62,797.70/x
  3. Step 3: Cross multiply
    113,784.50x = 157,021.50 × 62,797.70
  4. Step 4: Simplify right side
    113,784.50x = 9,860,589,050.55
  5. Step 5: Solve for x
    x = 9,860,589,050.55/113,784.50
  6. Step 6: Final answer
    x = 86,660.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.