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Finding the Fourth Proportional to 73,118.88, 100,903.17 and 41,289.12

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Solution

The fourth proportional to 73,118.88, 100,903.17 and 41,289.12 is: 56,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,118.88 : 100,903.17 = 41,289.12 : x
  2. Step 2: Convert to fraction form
    73,118.88/100,903.17 = 41,289.12/x
  3. Step 3: Cross multiply
    73,118.88x = 100,903.17 × 41,289.12
  4. Step 4: Simplify right side
    73,118.88x = 4,166,203,094.51
  5. Step 5: Solve for x
    x = 4,166,203,094.51/73,118.88
  6. Step 6: Final answer
    x = 56,978.49

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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.