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Finding the Fourth Proportional to 201,137.76, 277,570.32 and 111,713.76

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Solution

The fourth proportional to 201,137.76, 277,570.32 and 111,713.76 is: 154,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,137.76 : 277,570.32 = 111,713.76 : x
  2. Step 2: Convert to fraction form
    201,137.76/277,570.32 = 111,713.76/x
  3. Step 3: Cross multiply
    201,137.76x = 277,570.32 × 111,713.76
  4. Step 4: Simplify right side
    201,137.76x = 31,008,424,111.60
  5. Step 5: Solve for x
    x = 31,008,424,111.60/201,137.76
  6. Step 6: Final answer
    x = 154,165.11

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1.5x scale

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.