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Finding the Fourth Proportional to 73,525.30, 110,201.55 and 31,405.30

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Solution

The fourth proportional to 73,525.30, 110,201.55 and 31,405.30 is: 47,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,525.30 : 110,201.55 = 31,405.30 : x
  2. Step 2: Convert to fraction form
    73,525.30/110,201.55 = 31,405.30/x
  3. Step 3: Cross multiply
    73,525.30x = 110,201.55 × 31,405.30
  4. Step 4: Simplify right side
    73,525.30x = 3,460,912,738.22
  5. Step 5: Solve for x
    x = 3,460,912,738.22/73,525.30
  6. Step 6: Final answer
    x = 47,071.05

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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.