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Finding the Fourth Proportional to 265,141.36, 397,774.32 and 87,648.35

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Solution

The fourth proportional to 265,141.36, 397,774.32 and 87,648.35 is: 131,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,141.36 : 397,774.32 = 87,648.35 : x
  2. Step 2: Convert to fraction form
    265,141.36/397,774.32 = 87,648.35/x
  3. Step 3: Cross multiply
    265,141.36x = 397,774.32 × 87,648.35
  4. Step 4: Simplify right side
    265,141.36x = 34,864,262,382.13
  5. Step 5: Solve for x
    x = 34,864,262,382.13/265,141.36
  6. Step 6: Final answer
    x = 131,493.11

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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.