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Finding the Fourth Proportional to 265,881.39, 398,897.45 and 108,222.99

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Solution

The fourth proportional to 265,881.39, 398,897.45 and 108,222.99 is: 162,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,881.39 : 398,897.45 = 108,222.99 : x
  2. Step 2: Convert to fraction form
    265,881.39/398,897.45 = 108,222.99/x
  3. Step 3: Cross multiply
    265,881.39x = 398,897.45 × 108,222.99
  4. Step 4: Simplify right side
    265,881.39x = 43,169,874,201.26
  5. Step 5: Solve for x
    x = 43,169,874,201.26/265,881.39
  6. Step 6: Final answer
    x = 162,365.16

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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.