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Finding the Fourth Proportional to 166,522.93, 249,866.41 and 77,763.54

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Solution

The fourth proportional to 166,522.93, 249,866.41 and 77,763.54 is: 116,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,522.93 : 249,866.41 = 77,763.54 : x
  2. Step 2: Convert to fraction form
    166,522.93/249,866.41 = 77,763.54/x
  3. Step 3: Cross multiply
    166,522.93x = 249,866.41 × 77,763.54
  4. Step 4: Simplify right side
    166,522.93x = 19,430,496,568.69
  5. Step 5: Solve for x
    x = 19,430,496,568.69/166,522.93
  6. Step 6: Final answer
    x = 116,683.61

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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.