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Finding the Fourth Proportional to 75,313.32, 103,932.90 and 41,779.32

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Solution

The fourth proportional to 75,313.32, 103,932.90 and 41,779.32 is: 57,655.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,313.32 : 103,932.90 = 41,779.32 : x
  2. Step 2: Convert to fraction form
    75,313.32/103,932.90 = 41,779.32/x
  3. Step 3: Cross multiply
    75,313.32x = 103,932.90 × 41,779.32
  4. Step 4: Simplify right side
    75,313.32x = 4,342,245,887.63
  5. Step 5: Solve for x
    x = 4,342,245,887.63/75,313.32
  6. Step 6: Final answer
    x = 57,655.75

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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.