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Finding the Fourth Proportional to 201,288.80, 302,062.80 and 117,048.80

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Solution

The fourth proportional to 201,288.80, 302,062.80 and 117,048.80 is: 175,648.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,288.80 : 302,062.80 = 117,048.80 : x
  2. Step 2: Convert to fraction form
    201,288.80/302,062.80 = 117,048.80/x
  3. Step 3: Cross multiply
    201,288.80x = 302,062.80 × 117,048.80
  4. Step 4: Simplify right side
    201,288.80x = 35,356,088,264.64
  5. Step 5: Solve for x
    x = 35,356,088,264.64/201,288.80
  6. Step 6: Final answer
    x = 175,648.56

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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.