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Finding the Fourth Proportional to 229,329.80, 343,994.70 and 104,913.80

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Solution

The fourth proportional to 229,329.80, 343,994.70 and 104,913.80 is: 157,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,329.80 : 343,994.70 = 104,913.80 : x
  2. Step 2: Convert to fraction form
    229,329.80/343,994.70 = 104,913.80/x
  3. Step 3: Cross multiply
    229,329.80x = 343,994.70 × 104,913.80
  4. Step 4: Simplify right side
    229,329.80x = 36,089,791,156.86
  5. Step 5: Solve for x
    x = 36,089,791,156.86/229,329.80
  6. Step 6: Final answer
    x = 157,370.70

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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.