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Finding the Fourth Proportional to 302,988.56, 418,105.44 and 167,015.48

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Solution

The fourth proportional to 302,988.56, 418,105.44 and 167,015.48 is: 230,471.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,988.56 : 418,105.44 = 167,015.48 : x
  2. Step 2: Convert to fraction form
    302,988.56/418,105.44 = 167,015.48/x
  3. Step 3: Cross multiply
    302,988.56x = 418,105.44 × 167,015.48
  4. Step 4: Simplify right side
    302,988.56x = 69,830,080,752.21
  5. Step 5: Solve for x
    x = 69,830,080,752.21/302,988.56
  6. Step 6: Final answer
    x = 230,471.01

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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.