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Finding the Fourth Proportional to 114,290.90, 171,436.35 and 40,418.90

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Solution

The fourth proportional to 114,290.90, 171,436.35 and 40,418.90 is: 60,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,290.90 : 171,436.35 = 40,418.90 : x
  2. Step 2: Convert to fraction form
    114,290.90/171,436.35 = 40,418.90/x
  3. Step 3: Cross multiply
    114,290.90x = 171,436.35 × 40,418.90
  4. Step 4: Simplify right side
    114,290.90x = 6,929,268,687.02
  5. Step 5: Solve for x
    x = 6,929,268,687.02/114,290.90
  6. Step 6: Final answer
    x = 60,628.35

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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.