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Finding the Fourth Proportional to 265,875.72, 398,888.88 and 108,217.32

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Solution

The fourth proportional to 265,875.72, 398,888.88 and 108,217.32 is: 162,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,875.72 : 398,888.88 = 108,217.32 : x
  2. Step 2: Convert to fraction form
    265,875.72/398,888.88 = 108,217.32/x
  3. Step 3: Cross multiply
    265,875.72x = 398,888.88 × 108,217.32
  4. Step 4: Simplify right side
    265,875.72x = 43,166,685,571.40
  5. Step 5: Solve for x
    x = 43,166,685,571.40/265,875.72
  6. Step 6: Final answer
    x = 162,356.63

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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.