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Finding the Fourth Proportional to 111,804.80, 167,577.60 and 45,201.20

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Solution

The fourth proportional to 111,804.80, 167,577.60 and 45,201.20 is: 67,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,804.80 : 167,577.60 = 45,201.20 : x
  2. Step 2: Convert to fraction form
    111,804.80/167,577.60 = 45,201.20/x
  3. Step 3: Cross multiply
    111,804.80x = 167,577.60 × 45,201.20
  4. Step 4: Simplify right side
    111,804.80x = 7,574,708,613.12
  5. Step 5: Solve for x
    x = 7,574,708,613.12/111,804.80
  6. Step 6: Final answer
    x = 67,749.40

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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.