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Finding the Fourth Proportional to 153,903.36, 230,868.20 and 54,054.86

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Solution

The fourth proportional to 153,903.36, 230,868.20 and 54,054.86 is: 81,086.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,903.36 : 230,868.20 = 54,054.86 : x
  2. Step 2: Convert to fraction form
    153,903.36/230,868.20 = 54,054.86/x
  3. Step 3: Cross multiply
    153,903.36x = 230,868.20 × 54,054.86
  4. Step 4: Simplify right side
    153,903.36x = 12,479,548,229.45
  5. Step 5: Solve for x
    x = 12,479,548,229.45/153,903.36
  6. Step 6: Final answer
    x = 81,086.91

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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.