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Finding the Fourth Proportional to 113,263.87, 156,308.16 and 62,280.48

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Solution

The fourth proportional to 113,263.87, 156,308.16 and 62,280.48 is: 85,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,263.87 : 156,308.16 = 62,280.48 : x
  2. Step 2: Convert to fraction form
    113,263.87/156,308.16 = 62,280.48/x
  3. Step 3: Cross multiply
    113,263.87x = 156,308.16 × 62,280.48
  4. Step 4: Simplify right side
    113,263.87x = 9,734,947,232.72
  5. Step 5: Solve for x
    x = 9,734,947,232.72/113,263.87
  6. Step 6: Final answer
    x = 85,949.27

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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.