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Finding the Fourth Proportional to 71,853.40, 99,157.72 and 41,656.23

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Solution

The fourth proportional to 71,853.40, 99,157.72 and 41,656.23 is: 57,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,853.40 : 99,157.72 = 41,656.23 : x
  2. Step 2: Convert to fraction form
    71,853.40/99,157.72 = 41,656.23/x
  3. Step 3: Cross multiply
    71,853.40x = 99,157.72 × 41,656.23
  4. Step 4: Simplify right side
    71,853.40x = 4,130,536,790.60
  5. Step 5: Solve for x
    x = 4,130,536,790.60/71,853.40
  6. Step 6: Final answer
    x = 57,485.61

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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.