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Finding the Fourth Proportional to 448,224.40, 672,336.60 and 163,914.40

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Solution

The fourth proportional to 448,224.40, 672,336.60 and 163,914.40 is: 245,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,224.40 : 672,336.60 = 163,914.40 : x
  2. Step 2: Convert to fraction form
    448,224.40/672,336.60 = 163,914.40/x
  3. Step 3: Cross multiply
    448,224.40x = 672,336.60 × 163,914.40
  4. Step 4: Simplify right side
    448,224.40x = 110,205,650,387.04
  5. Step 5: Solve for x
    x = 110,205,650,387.04/448,224.40
  6. Step 6: Final answer
    x = 245,871.60

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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.