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Finding the Fourth Proportional to 448,790.40, 673,325.28 and 133,248.96

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Solution

The fourth proportional to 448,790.40, 673,325.28 and 133,248.96 is: 199,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,790.40 : 673,325.28 = 133,248.96 : x
  2. Step 2: Convert to fraction form
    448,790.40/673,325.28 = 133,248.96/x
  3. Step 3: Cross multiply
    448,790.40x = 673,325.28 × 133,248.96
  4. Step 4: Simplify right side
    448,790.40x = 89,719,893,301.71
  5. Step 5: Solve for x
    x = 89,719,893,301.71/448,790.40
  6. Step 6: Final answer
    x = 199,914.91

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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.