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Finding the Fourth Proportional to 80,405.15, 110,941.36 and 46,406.42

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Solution

The fourth proportional to 80,405.15, 110,941.36 and 46,406.42 is: 64,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,405.15 : 110,941.36 = 46,406.42 : x
  2. Step 2: Convert to fraction form
    80,405.15/110,941.36 = 46,406.42/x
  3. Step 3: Cross multiply
    80,405.15x = 110,941.36 × 46,406.42
  4. Step 4: Simplify right side
    80,405.15x = 5,148,391,347.53
  5. Step 5: Solve for x
    x = 5,148,391,347.53/80,405.15
  6. Step 6: Final answer
    x = 64,030.62

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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.