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Finding the Fourth Proportional to 191,544.75, 263,891.62 and 151,243.81

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Solution

The fourth proportional to 191,544.75, 263,891.62 and 151,243.81 is: 208,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,544.75 : 263,891.62 = 151,243.81 : x
  2. Step 2: Convert to fraction form
    191,544.75/263,891.62 = 151,243.81/x
  3. Step 3: Cross multiply
    191,544.75x = 263,891.62 × 151,243.81
  4. Step 4: Simplify right side
    191,544.75x = 39,911,973,565.20
  5. Step 5: Solve for x
    x = 39,911,973,565.20/191,544.75
  6. Step 6: Final answer
    x = 208,368.92

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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.