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Finding the Fourth Proportional to 72,100.32, 99,497.87 and 41,903.32

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Solution

The fourth proportional to 72,100.32, 99,497.87 and 41,903.32 is: 57,826.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,100.32 : 99,497.87 = 41,903.32 : x
  2. Step 2: Convert to fraction form
    72,100.32/99,497.87 = 41,903.32/x
  3. Step 3: Cross multiply
    72,100.32x = 99,497.87 × 41,903.32
  4. Step 4: Simplify right side
    72,100.32x = 4,169,290,588.44
  5. Step 5: Solve for x
    x = 4,169,290,588.44/72,100.32
  6. Step 6: Final answer
    x = 57,826.24

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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.