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Finding the Fourth Proportional to 110,287.33, 165,447.42 and 51,128.98

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Solution

The fourth proportional to 110,287.33, 165,447.42 and 51,128.98 is: 76,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,287.33 : 165,447.42 = 51,128.98 : x
  2. Step 2: Convert to fraction form
    110,287.33/165,447.42 = 51,128.98/x
  3. Step 3: Cross multiply
    110,287.33x = 165,447.42 × 51,128.98
  4. Step 4: Simplify right side
    110,287.33x = 8,459,157,828.23
  5. Step 5: Solve for x
    x = 8,459,157,828.23/110,287.33
  6. Step 6: Final answer
    x = 76,701.08

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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.