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Finding the Fourth Proportional to 208,415.48, 313,041.71 and 124,339.68

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Solution

The fourth proportional to 208,415.48, 313,041.71 and 124,339.68 is: 186,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,415.48 : 313,041.71 = 124,339.68 : x
  2. Step 2: Convert to fraction form
    208,415.48/313,041.71 = 124,339.68/x
  3. Step 3: Cross multiply
    208,415.48x = 313,041.71 × 124,339.68
  4. Step 4: Simplify right side
    208,415.48x = 38,923,507,239.33
  5. Step 5: Solve for x
    x = 38,923,507,239.33/208,415.48
  6. Step 6: Final answer
    x = 186,759.19

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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.