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Finding the Fourth Proportional to 228,809.20, 343,259.52 and 79,054.96

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Solution

The fourth proportional to 228,809.20, 343,259.52 and 79,054.96 is: 118,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,809.20 : 343,259.52 = 79,054.96 : x
  2. Step 2: Convert to fraction form
    228,809.20/343,259.52 = 79,054.96/x
  3. Step 3: Cross multiply
    228,809.20x = 343,259.52 × 79,054.96
  4. Step 4: Simplify right side
    228,809.20x = 27,136,367,623.22
  5. Step 5: Solve for x
    x = 27,136,367,623.22/228,809.20
  6. Step 6: Final answer
    x = 118,598.24

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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.