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Finding the Fourth Proportional to 448,081.60, 672,241.20 and 195,253.60

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Solution

The fourth proportional to 448,081.60, 672,241.20 and 195,253.60 is: 292,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,081.60 : 672,241.20 = 195,253.60 : x
  2. Step 2: Convert to fraction form
    448,081.60/672,241.20 = 195,253.60/x
  3. Step 3: Cross multiply
    448,081.60x = 672,241.20 × 195,253.60
  4. Step 4: Simplify right side
    448,081.60x = 131,257,514,368.32
  5. Step 5: Solve for x
    x = 131,257,514,368.32/448,081.60
  6. Step 6: Final answer
    x = 292,932.17

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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.