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Finding the Fourth Proportional to 113,713.65, 156,893.36 and 73,429.11

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Solution

The fourth proportional to 113,713.65, 156,893.36 and 73,429.11 is: 101,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,713.65 : 156,893.36 = 73,429.11 : x
  2. Step 2: Convert to fraction form
    113,713.65/156,893.36 = 73,429.11/x
  3. Step 3: Cross multiply
    113,713.65x = 156,893.36 × 73,429.11
  4. Step 4: Simplify right side
    113,713.65x = 11,520,539,422.56
  5. Step 5: Solve for x
    x = 11,520,539,422.56/113,713.65
  6. Step 6: Final answer
    x = 101,311.84

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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.