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Finding the Fourth Proportional to 255,247.64, 352,228.37 and 140,503.87

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Solution

The fourth proportional to 255,247.64, 352,228.37 and 140,503.87 is: 193,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,247.64 : 352,228.37 = 140,503.87 : x
  2. Step 2: Convert to fraction form
    255,247.64/352,228.37 = 140,503.87/x
  3. Step 3: Cross multiply
    255,247.64x = 352,228.37 × 140,503.87
  4. Step 4: Simplify right side
    255,247.64x = 49,489,447,525.70
  5. Step 5: Solve for x
    x = 49,489,447,525.70/255,247.64
  6. Step 6: Final answer
    x = 193,887.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.