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Finding the Fourth Proportional to 86,892.36, 130,400.70 and 37,007.40

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Solution

The fourth proportional to 86,892.36, 130,400.70 and 37,007.40 is: 55,537.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.36 : 130,400.70 = 37,007.40 : x
  2. Step 2: Convert to fraction form
    86,892.36/130,400.70 = 37,007.40/x
  3. Step 3: Cross multiply
    86,892.36x = 130,400.70 × 37,007.40
  4. Step 4: Simplify right side
    86,892.36x = 4,825,790,865.18
  5. Step 5: Solve for x
    x = 4,825,790,865.18/86,892.36
  6. Step 6: Final answer
    x = 55,537.57

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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.