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Finding the Fourth Proportional to 113,507.88, 156,647.94 and 62,520.60

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Solution

The fourth proportional to 113,507.88, 156,647.94 and 62,520.60 is: 86,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,507.88 : 156,647.94 = 62,520.60 : x
  2. Step 2: Convert to fraction form
    113,507.88/156,647.94 = 62,520.60/x
  3. Step 3: Cross multiply
    113,507.88x = 156,647.94 × 62,520.60
  4. Step 4: Simplify right side
    113,507.88x = 9,793,723,197.56
  5. Step 5: Solve for x
    x = 9,793,723,197.56/113,507.88
  6. Step 6: Final answer
    x = 86,282.32

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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.