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Finding the Fourth Proportional to 448,713.68, 672,924.80 and 149,113.76

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Solution

The fourth proportional to 448,713.68, 672,924.80 and 149,113.76 is: 223,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,713.68 : 672,924.80 = 149,113.76 : x
  2. Step 2: Convert to fraction form
    448,713.68/672,924.80 = 149,113.76/x
  3. Step 3: Cross multiply
    448,713.68x = 672,924.80 × 149,113.76
  4. Step 4: Simplify right side
    448,713.68x = 100,342,347,125.25
  5. Step 5: Solve for x
    x = 100,342,347,125.25/448,713.68
  6. Step 6: Final answer
    x = 223,622.22

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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.