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Finding the Fourth Proportional to 72,901.64, 100,603.14 and 41,073.56

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Solution

The fourth proportional to 72,901.64, 100,603.14 and 41,073.56 is: 56,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,901.64 : 100,603.14 = 41,073.56 : x
  2. Step 2: Convert to fraction form
    72,901.64/100,603.14 = 41,073.56/x
  3. Step 3: Cross multiply
    72,901.64x = 100,603.14 × 41,073.56
  4. Step 4: Simplify right side
    72,901.64x = 4,132,129,106.98
  5. Step 5: Solve for x
    x = 4,132,129,106.98/72,901.64
  6. Step 6: Final answer
    x = 56,680.88

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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.