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Finding the Fourth Proportional to 79,223.74, 118,862.08 and 25,918.16

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Solution

The fourth proportional to 79,223.74, 118,862.08 and 25,918.16 is: 38,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,223.74 : 118,862.08 = 25,918.16 : x
  2. Step 2: Convert to fraction form
    79,223.74/118,862.08 = 25,918.16/x
  3. Step 3: Cross multiply
    79,223.74x = 118,862.08 × 25,918.16
  4. Step 4: Simplify right side
    79,223.74x = 3,080,686,407.37
  5. Step 5: Solve for x
    x = 3,080,686,407.37/79,223.74
  6. Step 6: Final answer
    x = 38,885.90

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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.