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Finding the Fourth Proportional to 201,636.03, 302,454.06 and 83,310.42

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Solution

The fourth proportional to 201,636.03, 302,454.06 and 83,310.42 is: 124,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,636.03 : 302,454.06 = 83,310.42 : x
  2. Step 2: Convert to fraction form
    201,636.03/302,454.06 = 83,310.42/x
  3. Step 3: Cross multiply
    201,636.03x = 302,454.06 × 83,310.42
  4. Step 4: Simplify right side
    201,636.03x = 25,197,574,769.31
  5. Step 5: Solve for x
    x = 25,197,574,769.31/201,636.03
  6. Step 6: Final answer
    x = 124,965.64

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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.