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Finding the Fourth Proportional to 46,287.60, 69,431.40 and 43,371.60

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Solution

The fourth proportional to 46,287.60, 69,431.40 and 43,371.60 is: 65,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,287.60 : 69,431.40 = 43,371.60 : x
  2. Step 2: Convert to fraction form
    46,287.60/69,431.40 = 43,371.60/x
  3. Step 3: Cross multiply
    46,287.60x = 69,431.40 × 43,371.60
  4. Step 4: Simplify right side
    46,287.60x = 3,011,350,908.24
  5. Step 5: Solve for x
    x = 3,011,350,908.24/46,287.60
  6. Step 6: Final answer
    x = 65,057.40

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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.