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Finding the Fourth Proportional to 448,327.68, 672,485.76 and 148,945.92

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Solution

The fourth proportional to 448,327.68, 672,485.76 and 148,945.92 is: 223,416.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,327.68 : 672,485.76 = 148,945.92 : x
  2. Step 2: Convert to fraction form
    448,327.68/672,485.76 = 148,945.92/x
  3. Step 3: Cross multiply
    448,327.68x = 672,485.76 × 148,945.92
  4. Step 4: Simplify right side
    448,327.68x = 100,164,010,210.10
  5. Step 5: Solve for x
    x = 100,164,010,210.10/448,327.68
  6. Step 6: Final answer
    x = 223,416.97

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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.