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Finding the Fourth Proportional to 113,783.30, 156,953.30 and 73,520.80

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Solution

The fourth proportional to 113,783.30, 156,953.30 and 73,520.80 is: 101,414.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,783.30 : 156,953.30 = 73,520.80 : x
  2. Step 2: Convert to fraction form
    113,783.30/156,953.30 = 73,520.80/x
  3. Step 3: Cross multiply
    113,783.30x = 156,953.30 × 73,520.80
  4. Step 4: Simplify right side
    113,783.30x = 11,539,332,178.64
  5. Step 5: Solve for x
    x = 11,539,332,178.64/113,783.30
  6. Step 6: Final answer
    x = 101,414.99

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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.