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Finding the Fourth Proportional to 201,703.80, 302,555.70 and 127,054.20

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Solution

The fourth proportional to 201,703.80, 302,555.70 and 127,054.20 is: 190,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,703.80 : 302,555.70 = 127,054.20 : x
  2. Step 2: Convert to fraction form
    201,703.80/302,555.70 = 127,054.20/x
  3. Step 3: Cross multiply
    201,703.80x = 302,555.70 × 127,054.20
  4. Step 4: Simplify right side
    201,703.80x = 38,440,972,418.94
  5. Step 5: Solve for x
    x = 38,440,972,418.94/201,703.80
  6. Step 6: Final answer
    x = 190,581.30

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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.