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Finding the Fourth Proportional to 127,955, 191,933.04 and 39,201.68

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Solution

The fourth proportional to 127,955, 191,933.04 and 39,201.68 is: 58,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,955 : 191,933.04 = 39,201.68 : x
  2. Step 2: Convert to fraction form
    127,955/191,933.04 = 39,201.68/x
  3. Step 3: Cross multiply
    127,955x = 191,933.04 × 39,201.68
  4. Step 4: Simplify right side
    127,955x = 7,524,097,615.51
  5. Step 5: Solve for x
    x = 7,524,097,615.51/127,955
  6. Step 6: Final answer
    x = 58,802.69

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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.