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Finding the Fourth Proportional to 169,632.60, 254,448.90 and 76,320.60

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Solution

The fourth proportional to 169,632.60, 254,448.90 and 76,320.60 is: 114,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,632.60 : 254,448.90 = 76,320.60 : x
  2. Step 2: Convert to fraction form
    169,632.60/254,448.90 = 76,320.60/x
  3. Step 3: Cross multiply
    169,632.60x = 254,448.90 × 76,320.60
  4. Step 4: Simplify right side
    169,632.60x = 19,419,692,717.34
  5. Step 5: Solve for x
    x = 19,419,692,717.34/169,632.60
  6. Step 6: Final answer
    x = 114,480.90

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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.