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Finding the Fourth Proportional to 79,192.66, 118,798.90 and 25,890.00

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Solution

The fourth proportional to 79,192.66, 118,798.90 and 25,890.00 is: 38,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,192.66 : 118,798.90 = 25,890.00 : x
  2. Step 2: Convert to fraction form
    79,192.66/118,798.90 = 25,890.00/x
  3. Step 3: Cross multiply
    79,192.66x = 118,798.90 × 25,890.00
  4. Step 4: Simplify right side
    79,192.66x = 3,075,704,158.78
  5. Step 5: Solve for x
    x = 3,075,704,158.78/79,192.66
  6. Step 6: Final answer
    x = 38,838.25

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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.