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Finding the Fourth Proportional to 370,699.26, 556,048.96 and 90,216.52

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Solution

The fourth proportional to 370,699.26, 556,048.96 and 90,216.52 is: 135,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,699.26 : 556,048.96 = 90,216.52 : x
  2. Step 2: Convert to fraction form
    370,699.26/556,048.96 = 90,216.52/x
  3. Step 3: Cross multiply
    370,699.26x = 556,048.96 × 90,216.52
  4. Step 4: Simplify right side
    370,699.26x = 50,164,802,120.82
  5. Step 5: Solve for x
    x = 50,164,802,120.82/370,699.26
  6. Step 6: Final answer
    x = 135,324.80

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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.