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Finding the Fourth Proportional to 114,129.88, 171,104.46 and 57,918.28

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Solution

The fourth proportional to 114,129.88, 171,104.46 and 57,918.28 is: 86,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,129.88 : 171,104.46 = 57,918.28 : x
  2. Step 2: Convert to fraction form
    114,129.88/171,104.46 = 57,918.28/x
  3. Step 3: Cross multiply
    114,129.88x = 171,104.46 × 57,918.28
  4. Step 4: Simplify right side
    114,129.88x = 9,910,076,023.53
  5. Step 5: Solve for x
    x = 9,910,076,023.53/114,129.88
  6. Step 6: Final answer
    x = 86,831.56

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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.