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Finding the Fourth Proportional to 250,783.48, 375,885.42 and 115,564.83

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Solution

The fourth proportional to 250,783.48, 375,885.42 and 115,564.83 is: 173,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,783.48 : 375,885.42 = 115,564.83 : x
  2. Step 2: Convert to fraction form
    250,783.48/375,885.42 = 115,564.83/x
  3. Step 3: Cross multiply
    250,783.48x = 375,885.42 × 115,564.83
  4. Step 4: Simplify right side
    250,783.48x = 43,439,134,661.78
  5. Step 5: Solve for x
    x = 43,439,134,661.78/250,783.48
  6. Step 6: Final answer
    x = 173,213.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.