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Finding the Fourth Proportional to 197,804.16, 272,987.28 and 112,948.56

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Solution

The fourth proportional to 197,804.16, 272,987.28 and 112,948.56 is: 155,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,804.16 : 272,987.28 = 112,948.56 : x
  2. Step 2: Convert to fraction form
    197,804.16/272,987.28 = 112,948.56/x
  3. Step 3: Cross multiply
    197,804.16x = 272,987.28 × 112,948.56
  4. Step 4: Simplify right side
    197,804.16x = 30,833,520,174.32
  5. Step 5: Solve for x
    x = 30,833,520,174.32/197,804.16
  6. Step 6: Final answer
    x = 155,879.03

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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.