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Finding the Fourth Proportional to 111,536.51, 167,305.85 and 28,430.51

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Solution

The fourth proportional to 111,536.51, 167,305.85 and 28,430.51 is: 42,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,536.51 : 167,305.85 = 28,430.51 : x
  2. Step 2: Convert to fraction form
    111,536.51/167,305.85 = 28,430.51/x
  3. Step 3: Cross multiply
    111,536.51x = 167,305.85 × 28,430.51
  4. Step 4: Simplify right side
    111,536.51x = 4,756,589,662.80
  5. Step 5: Solve for x
    x = 4,756,589,662.80/111,536.51
  6. Step 6: Final answer
    x = 42,646.03

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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.