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Finding the Fourth Proportional to 201,007.01, 277,378.85 and 111,577.25

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Solution

The fourth proportional to 201,007.01, 277,378.85 and 111,577.25 is: 153,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,007.01 : 277,378.85 = 111,577.25 : x
  2. Step 2: Convert to fraction form
    201,007.01/277,378.85 = 111,577.25/x
  3. Step 3: Cross multiply
    201,007.01x = 277,378.85 × 111,577.25
  4. Step 4: Simplify right side
    201,007.01x = 30,949,168,733.28
  5. Step 5: Solve for x
    x = 30,949,168,733.28/201,007.01
  6. Step 6: Final answer
    x = 153,970.59

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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.