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Finding the Fourth Proportional to 316,852.92, 437,256.78 and 173,621.88

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Solution

The fourth proportional to 316,852.92, 437,256.78 and 173,621.88 is: 239,598.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,852.92 : 437,256.78 = 173,621.88 : x
  2. Step 2: Convert to fraction form
    316,852.92/437,256.78 = 173,621.88/x
  3. Step 3: Cross multiply
    316,852.92x = 437,256.78 × 173,621.88
  4. Step 4: Simplify right side
    316,852.92x = 75,917,344,186.35
  5. Step 5: Solve for x
    x = 75,917,344,186.35/316,852.92
  6. Step 6: Final answer
    x = 239,598.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.