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Finding the Fourth Proportional to 113,494.87, 156,621.45 and 62,506.63

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Solution

The fourth proportional to 113,494.87, 156,621.45 and 62,506.63 is: 86,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,494.87 : 156,621.45 = 62,506.63 : x
  2. Step 2: Convert to fraction form
    113,494.87/156,621.45 = 62,506.63/x
  3. Step 3: Cross multiply
    113,494.87x = 156,621.45 × 62,506.63
  4. Step 4: Simplify right side
    113,494.87x = 9,789,879,025.21
  5. Step 5: Solve for x
    x = 9,789,879,025.21/113,494.87
  6. Step 6: Final answer
    x = 86,258.34

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1.5x scale

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.