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Finding the Fourth Proportional to 168,795.60, 253,193.40 and 84,814.80

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Solution

The fourth proportional to 168,795.60, 253,193.40 and 84,814.80 is: 127,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,795.60 : 253,193.40 = 84,814.80 : x
  2. Step 2: Convert to fraction form
    168,795.60/253,193.40 = 84,814.80/x
  3. Step 3: Cross multiply
    168,795.60x = 253,193.40 × 84,814.80
  4. Step 4: Simplify right side
    168,795.60x = 21,474,547,582.32
  5. Step 5: Solve for x
    x = 21,474,547,582.32/168,795.60
  6. Step 6: Final answer
    x = 127,222.20

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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.