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Finding the Fourth Proportional to 113,523.34, 156,655.33 and 65,768.44

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Solution

The fourth proportional to 113,523.34, 156,655.33 and 65,768.44 is: 90,756.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,523.34 : 156,655.33 = 65,768.44 : x
  2. Step 2: Convert to fraction form
    113,523.34/156,655.33 = 65,768.44/x
  3. Step 3: Cross multiply
    113,523.34x = 156,655.33 × 65,768.44
  4. Step 4: Simplify right side
    113,523.34x = 10,302,976,671.79
  5. Step 5: Solve for x
    x = 10,302,976,671.79/113,523.34
  6. Step 6: Final answer
    x = 90,756.46

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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.