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Finding the Fourth Proportional to 81,567.36, 122,247.36 and 37,218.24

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Solution

The fourth proportional to 81,567.36, 122,247.36 and 37,218.24 is: 55,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,567.36 : 122,247.36 = 37,218.24 : x
  2. Step 2: Convert to fraction form
    81,567.36/122,247.36 = 37,218.24/x
  3. Step 3: Cross multiply
    81,567.36x = 122,247.36 × 37,218.24
  4. Step 4: Simplify right side
    81,567.36x = 4,549,831,583.85
  5. Step 5: Solve for x
    x = 4,549,831,583.85/81,567.36
  6. Step 6: Final answer
    x = 55,780.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.