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Finding the Fourth Proportional to 114,907.80, 172,361.70 and 30,667.80

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Solution

The fourth proportional to 114,907.80, 172,361.70 and 30,667.80 is: 46,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,907.80 : 172,361.70 = 30,667.80 : x
  2. Step 2: Convert to fraction form
    114,907.80/172,361.70 = 30,667.80/x
  3. Step 3: Cross multiply
    114,907.80x = 172,361.70 × 30,667.80
  4. Step 4: Simplify right side
    114,907.80x = 5,285,954,143.26
  5. Step 5: Solve for x
    x = 5,285,954,143.26/114,907.80
  6. Step 6: Final answer
    x = 46,001.70

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1.5x scale

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.