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Finding the Fourth Proportional to 114,140.20, 171,415.10 and 83,010.60

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Solution

The fourth proportional to 114,140.20, 171,415.10 and 83,010.60 is: 124,664.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,140.20 : 171,415.10 = 83,010.60 : x
  2. Step 2: Convert to fraction form
    114,140.20/171,415.10 = 83,010.60/x
  3. Step 3: Cross multiply
    114,140.20x = 171,415.10 × 83,010.60
  4. Step 4: Simplify right side
    114,140.20x = 14,229,270,300.06
  5. Step 5: Solve for x
    x = 14,229,270,300.06/114,140.20
  6. Step 6: Final answer
    x = 124,664.84

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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.