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Finding the Fourth Proportional to 391,506.34, 587,259.87 and 96,018.34

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Solution

The fourth proportional to 391,506.34, 587,259.87 and 96,018.34 is: 144,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,506.34 : 587,259.87 = 96,018.34 : x
  2. Step 2: Convert to fraction form
    391,506.34/587,259.87 = 96,018.34/x
  3. Step 3: Cross multiply
    391,506.34x = 587,259.87 × 96,018.34
  4. Step 4: Simplify right side
    391,506.34x = 56,387,717,866.02
  5. Step 5: Solve for x
    x = 56,387,717,866.02/391,506.34
  6. Step 6: Final answer
    x = 144,027.60

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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.