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Finding the Fourth Proportional to 448,681.68, 672,876.90 and 149,081.81

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Solution

The fourth proportional to 448,681.68, 672,876.90 and 149,081.81 is: 223,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,681.68 : 672,876.90 = 149,081.81 : x
  2. Step 2: Convert to fraction form
    448,681.68/672,876.90 = 149,081.81/x
  3. Step 3: Cross multiply
    448,681.68x = 672,876.90 × 149,081.81
  4. Step 4: Simplify right side
    448,681.68x = 100,313,702,794.81
  5. Step 5: Solve for x
    x = 100,313,702,794.81/448,681.68
  6. Step 6: Final answer
    x = 223,574.32

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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.