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Finding the Fourth Proportional to 71,381.88, 107,227.32 and 46,409.08

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Solution

The fourth proportional to 71,381.88, 107,227.32 and 46,409.08 is: 69,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,381.88 : 107,227.32 = 46,409.08 : x
  2. Step 2: Convert to fraction form
    71,381.88/107,227.32 = 46,409.08/x
  3. Step 3: Cross multiply
    71,381.88x = 107,227.32 × 46,409.08
  4. Step 4: Simplify right side
    71,381.88x = 4,976,321,272.07
  5. Step 5: Solve for x
    x = 4,976,321,272.07/71,381.88
  6. Step 6: Final answer
    x = 69,714.07

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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.