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Finding the Fourth Proportional to 191,628.75, 264,389.14 and 111,040.70

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Solution

The fourth proportional to 191,628.75, 264,389.14 and 111,040.70 is: 153,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,628.75 : 264,389.14 = 111,040.70 : x
  2. Step 2: Convert to fraction form
    191,628.75/264,389.14 = 111,040.70/x
  3. Step 3: Cross multiply
    191,628.75x = 264,389.14 × 111,040.70
  4. Step 4: Simplify right side
    191,628.75x = 29,357,955,561.37
  5. Step 5: Solve for x
    x = 29,357,955,561.37/191,628.75
  6. Step 6: Final answer
    x = 153,202.25

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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.