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Finding the Fourth Proportional to 270,497.64, 373,314.64 and 155,780.04

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Solution

The fourth proportional to 270,497.64, 373,314.64 and 155,780.04 is: 214,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,497.64 : 373,314.64 = 155,780.04 : x
  2. Step 2: Convert to fraction form
    270,497.64/373,314.64 = 155,780.04/x
  3. Step 3: Cross multiply
    270,497.64x = 373,314.64 × 155,780.04
  4. Step 4: Simplify right side
    270,497.64x = 58,154,969,551.79
  5. Step 5: Solve for x
    x = 58,154,969,551.79/270,497.64
  6. Step 6: Final answer
    x = 214,992.52

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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.