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Finding the Fourth Proportional to 269,848.80, 372,403.44 and 155,164.68

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Solution

The fourth proportional to 269,848.80, 372,403.44 and 155,164.68 is: 214,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,848.80 : 372,403.44 = 155,164.68 : x
  2. Step 2: Convert to fraction form
    269,848.80/372,403.44 = 155,164.68/x
  3. Step 3: Cross multiply
    269,848.80x = 372,403.44 × 155,164.68
  4. Step 4: Simplify right side
    269,848.80x = 57,783,860,598.50
  5. Step 5: Solve for x
    x = 57,783,860,598.50/269,848.80
  6. Step 6: Final answer
    x = 214,134.21

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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.