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Finding the Fourth Proportional to 113,557.63, 156,674.84 and 65,801.75

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Solution

The fourth proportional to 113,557.63, 156,674.84 and 65,801.75 is: 90,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,557.63 : 156,674.84 = 65,801.75 : x
  2. Step 2: Convert to fraction form
    113,557.63/156,674.84 = 65,801.75/x
  3. Step 3: Cross multiply
    113,557.63x = 156,674.84 × 65,801.75
  4. Step 4: Simplify right side
    113,557.63x = 10,309,478,652.97
  5. Step 5: Solve for x
    x = 10,309,478,652.97/113,557.63
  6. Step 6: Final answer
    x = 90,786.31

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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.