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Finding the Fourth Proportional to 201,804,738.60, 302,707,107.90 and 191,727,042.60

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Solution

The fourth proportional to 201,804,738.60, 302,707,107.90 and 191,727,042.60 is: 287,590,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,804,738.60 : 302,707,107.90 = 191,727,042.60 : x
  2. Step 2: Convert to fraction form
    201,804,738.60/302,707,107.90 = 191,727,042.60/x
  3. Step 3: Cross multiply
    201,804,738.60x = 302,707,107.90 × 191,727,042.60
  4. Step 4: Simplify right side
    201,804,738.60x = 58,037,138,571,666,088
  5. Step 5: Solve for x
    x = 58,037,138,571,666,088/201,804,738.60
  6. Step 6: Final answer
    x = 287,590,563.90

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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.