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Finding the Fourth Proportional to 302,957.04, 418,104.81 and 167,015.28

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Solution

The fourth proportional to 302,957.04, 418,104.81 and 167,015.28 is: 230,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,957.04 : 418,104.81 = 167,015.28 : x
  2. Step 2: Convert to fraction form
    302,957.04/418,104.81 = 167,015.28/x
  3. Step 3: Cross multiply
    302,957.04x = 418,104.81 × 167,015.28
  4. Step 4: Simplify right side
    302,957.04x = 69,829,891,911.50
  5. Step 5: Solve for x
    x = 69,829,891,911.50/302,957.04
  6. Step 6: Final answer
    x = 230,494.37

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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.