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Finding the Fourth Proportional to 258,873.90, 357,108.96 and 178,161.30

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Solution

The fourth proportional to 258,873.90, 357,108.96 and 178,161.30 is: 245,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,873.90 : 357,108.96 = 178,161.30 : x
  2. Step 2: Convert to fraction form
    258,873.90/357,108.96 = 178,161.30/x
  3. Step 3: Cross multiply
    258,873.90x = 357,108.96 × 178,161.30
  4. Step 4: Simplify right side
    258,873.90x = 63,622,996,555.25
  5. Step 5: Solve for x
    x = 63,622,996,555.25/258,873.90
  6. Step 6: Final answer
    x = 245,768.29

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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.