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Finding the Fourth Proportional to 255,758.18, 352,945.53 and 148,391.06

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Solution

The fourth proportional to 255,758.18, 352,945.53 and 148,391.06 is: 204,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,758.18 : 352,945.53 = 148,391.06 : x
  2. Step 2: Convert to fraction form
    255,758.18/352,945.53 = 148,391.06/x
  3. Step 3: Cross multiply
    255,758.18x = 352,945.53 × 148,391.06
  4. Step 4: Simplify right side
    255,758.18x = 52,373,959,554.23
  5. Step 5: Solve for x
    x = 52,373,959,554.23/255,758.18
  6. Step 6: Final answer
    x = 204,779.22

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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.