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Finding the Fourth Proportional to 325,369.60, 487,908.60 and 125,623.60

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Solution

The fourth proportional to 325,369.60, 487,908.60 and 125,623.60 is: 188,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,369.60 : 487,908.60 = 125,623.60 : x
  2. Step 2: Convert to fraction form
    325,369.60/487,908.60 = 125,623.60/x
  3. Step 3: Cross multiply
    325,369.60x = 487,908.60 × 125,623.60
  4. Step 4: Simplify right side
    325,369.60x = 61,292,834,802.96
  5. Step 5: Solve for x
    x = 61,292,834,802.96/325,369.60
  6. Step 6: Final answer
    x = 188,379.11

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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.