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Finding the Fourth Proportional to 265,905.48, 398,771.66 and 88,364.82

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Solution

The fourth proportional to 265,905.48, 398,771.66 and 88,364.82 is: 132,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,905.48 : 398,771.66 = 88,364.82 : x
  2. Step 2: Convert to fraction form
    265,905.48/398,771.66 = 88,364.82/x
  3. Step 3: Cross multiply
    265,905.48x = 398,771.66 × 88,364.82
  4. Step 4: Simplify right side
    265,905.48x = 35,237,387,176.25
  5. Step 5: Solve for x
    x = 35,237,387,176.25/265,905.48
  6. Step 6: Final answer
    x = 132,518.47

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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.