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Finding the Fourth Proportional to 325,339.06, 488,007.96 and 88,681.36

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Solution

The fourth proportional to 325,339.06, 488,007.96 and 88,681.36 is: 133,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,339.06 : 488,007.96 = 88,681.36 : x
  2. Step 2: Convert to fraction form
    325,339.06/488,007.96 = 88,681.36/x
  3. Step 3: Cross multiply
    325,339.06x = 488,007.96 × 88,681.36
  4. Step 4: Simplify right side
    325,339.06x = 43,277,209,583.63
  5. Step 5: Solve for x
    x = 43,277,209,583.63/325,339.06
  6. Step 6: Final answer
    x = 133,021.87

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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.