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Finding the Fourth Proportional to 95,978.40, 143,967.60 and 57,924.60

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Solution

The fourth proportional to 95,978.40, 143,967.60 and 57,924.60 is: 86,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,978.40 : 143,967.60 = 57,924.60 : x
  2. Step 2: Convert to fraction form
    95,978.40/143,967.60 = 57,924.60/x
  3. Step 3: Cross multiply
    95,978.40x = 143,967.60 × 57,924.60
  4. Step 4: Simplify right side
    95,978.40x = 8,339,265,642.96
  5. Step 5: Solve for x
    x = 8,339,265,642.96/95,978.40
  6. Step 6: Final answer
    x = 86,886.90

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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.