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Finding the Fourth Proportional to 453,209.60, 679,816.32 and 137,669.12

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Solution

The fourth proportional to 453,209.60, 679,816.32 and 137,669.12 is: 206,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,209.60 : 679,816.32 = 137,669.12 : x
  2. Step 2: Convert to fraction form
    453,209.60/679,816.32 = 137,669.12/x
  3. Step 3: Cross multiply
    453,209.60x = 679,816.32 × 137,669.12
  4. Step 4: Simplify right side
    453,209.60x = 93,589,714,536.04
  5. Step 5: Solve for x
    x = 93,589,714,536.04/453,209.60
  6. Step 6: Final answer
    x = 206,504.26

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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.