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Finding the Fourth Proportional to 72,749.34, 100,369.35 and 44,077.86

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Solution

The fourth proportional to 72,749.34, 100,369.35 and 44,077.86 is: 60,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,749.34 : 100,369.35 = 44,077.86 : x
  2. Step 2: Convert to fraction form
    72,749.34/100,369.35 = 44,077.86/x
  3. Step 3: Cross multiply
    72,749.34x = 100,369.35 × 44,077.86
  4. Step 4: Simplify right side
    72,749.34x = 4,424,066,157.59
  5. Step 5: Solve for x
    x = 4,424,066,157.59/72,749.34
  6. Step 6: Final answer
    x = 60,812.46

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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.