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Finding the Fourth Proportional to 86,977.80, 130,466.70 and 23,797.80

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Solution

The fourth proportional to 86,977.80, 130,466.70 and 23,797.80 is: 35,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,977.80 : 130,466.70 = 23,797.80 : x
  2. Step 2: Convert to fraction form
    86,977.80/130,466.70 = 23,797.80/x
  3. Step 3: Cross multiply
    86,977.80x = 130,466.70 × 23,797.80
  4. Step 4: Simplify right side
    86,977.80x = 3,104,820,433.26
  5. Step 5: Solve for x
    x = 3,104,820,433.26/86,977.80
  6. Step 6: Final answer
    x = 35,696.70

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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.