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Finding the Fourth Proportional to 258,567.86, 356,810.61 and 145,383.86

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Solution

The fourth proportional to 258,567.86, 356,810.61 and 145,383.86 is: 200,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,567.86 : 356,810.61 = 145,383.86 : x
  2. Step 2: Convert to fraction form
    258,567.86/356,810.61 = 145,383.86/x
  3. Step 3: Cross multiply
    258,567.86x = 356,810.61 × 145,383.86
  4. Step 4: Simplify right side
    258,567.86x = 51,874,503,770.75
  5. Step 5: Solve for x
    x = 51,874,503,770.75/258,567.86
  6. Step 6: Final answer
    x = 200,622.40

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1.5x scale

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.