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Finding the Fourth Proportional to 448,638.76, 672,931.74 and 168,132.52

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Solution

The fourth proportional to 448,638.76, 672,931.74 and 168,132.52 is: 252,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,638.76 : 672,931.74 = 168,132.52 : x
  2. Step 2: Convert to fraction form
    448,638.76/672,931.74 = 168,132.52/x
  3. Step 3: Cross multiply
    448,638.76x = 672,931.74 × 168,132.52
  4. Step 4: Simplify right side
    448,638.76x = 113,141,709,234.19
  5. Step 5: Solve for x
    x = 113,141,709,234.19/448,638.76
  6. Step 6: Final answer
    x = 252,188.89

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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.