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Finding the Fourth Proportional to 240,655.70, 360,975.90 and 114,386.78

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Solution

The fourth proportional to 240,655.70, 360,975.90 and 114,386.78 is: 171,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,655.70 : 360,975.90 = 114,386.78 : x
  2. Step 2: Convert to fraction form
    240,655.70/360,975.90 = 114,386.78/x
  3. Step 3: Cross multiply
    240,655.70x = 360,975.90 × 114,386.78
  4. Step 4: Simplify right side
    240,655.70x = 41,290,870,858.60
  5. Step 5: Solve for x
    x = 41,290,870,858.60/240,655.70
  6. Step 6: Final answer
    x = 171,576.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.