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Finding the Fourth Proportional to 448,569.56, 672,851.12 and 164,279.60

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Solution

The fourth proportional to 448,569.56, 672,851.12 and 164,279.60 is: 246,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,569.56 : 672,851.12 = 164,279.60 : x
  2. Step 2: Convert to fraction form
    448,569.56/672,851.12 = 164,279.60/x
  3. Step 3: Cross multiply
    448,569.56x = 672,851.12 × 164,279.60
  4. Step 4: Simplify right side
    448,569.56x = 110,535,712,853.15
  5. Step 5: Solve for x
    x = 110,535,712,853.15/448,569.56
  6. Step 6: Final answer
    x = 246,418.22

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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.