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Finding the Fourth Proportional to 448,063.44, 671,949.04 and 163,688.64

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Solution

The fourth proportional to 448,063.44, 671,949.04 and 163,688.64 is: 245,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,063.44 : 671,949.04 = 163,688.64 : x
  2. Step 2: Convert to fraction form
    448,063.44/671,949.04 = 163,688.64/x
  3. Step 3: Cross multiply
    448,063.44x = 671,949.04 × 163,688.64
  4. Step 4: Simplify right side
    448,063.44x = 109,990,424,506.91
  5. Step 5: Solve for x
    x = 109,990,424,506.91/448,063.44
  6. Step 6: Final answer
    x = 245,479.58

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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.