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Finding the Fourth Proportional to 127,973.60, 191,958.60 and 57,852.80

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Solution

The fourth proportional to 127,973.60, 191,958.60 and 57,852.80 is: 86,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,973.60 : 191,958.60 = 57,852.80 : x
  2. Step 2: Convert to fraction form
    127,973.60/191,958.60 = 57,852.80/x
  3. Step 3: Cross multiply
    127,973.60x = 191,958.60 × 57,852.80
  4. Step 4: Simplify right side
    127,973.60x = 11,105,342,494.08
  5. Step 5: Solve for x
    x = 11,105,342,494.08/127,973.60
  6. Step 6: Final answer
    x = 86,778.39

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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.