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Finding the Fourth Proportional to 448,168.60, 672,123.30 and 163,826.20

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Solution

The fourth proportional to 448,168.60, 672,123.30 and 163,826.20 is: 245,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,168.60 : 672,123.30 = 163,826.20 : x
  2. Step 2: Convert to fraction form
    448,168.60/672,123.30 = 163,826.20/x
  3. Step 3: Cross multiply
    448,168.60x = 672,123.30 × 163,826.20
  4. Step 4: Simplify right side
    448,168.60x = 110,111,406,170.46
  5. Step 5: Solve for x
    x = 110,111,406,170.46/448,168.60
  6. Step 6: Final answer
    x = 245,691.93

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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.