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Finding the Fourth Proportional to 79,117.60, 118,692.60 and 26,564.80

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Solution

The fourth proportional to 79,117.60, 118,692.60 and 26,564.80 is: 39,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.60 : 118,692.60 = 26,564.80 : x
  2. Step 2: Convert to fraction form
    79,117.60/118,692.60 = 26,564.80/x
  3. Step 3: Cross multiply
    79,117.60x = 118,692.60 × 26,564.80
  4. Step 4: Simplify right side
    79,117.60x = 3,153,045,180.48
  5. Step 5: Solve for x
    x = 3,153,045,180.48/79,117.60
  6. Step 6: Final answer
    x = 39,852.64

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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.