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Finding the Fourth Proportional to 79,133.80, 118,681.50 and 26,529.64

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Solution

The fourth proportional to 79,133.80, 118,681.50 and 26,529.64 is: 39,788.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,133.80 : 118,681.50 = 26,529.64 : x
  2. Step 2: Convert to fraction form
    79,133.80/118,681.50 = 26,529.64/x
  3. Step 3: Cross multiply
    79,133.80x = 118,681.50 × 26,529.64
  4. Step 4: Simplify right side
    79,133.80x = 3,148,577,469.66
  5. Step 5: Solve for x
    x = 3,148,577,469.66/79,133.80
  6. Step 6: Final answer
    x = 39,788.02

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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.