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Finding the Fourth Proportional to 229,290.60, 343,820.70 and 104,490.60

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Solution

The fourth proportional to 229,290.60, 343,820.70 and 104,490.60 is: 156,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,290.60 : 343,820.70 = 104,490.60 : x
  2. Step 2: Convert to fraction form
    229,290.60/343,820.70 = 104,490.60/x
  3. Step 3: Cross multiply
    229,290.60x = 343,820.70 × 104,490.60
  4. Step 4: Simplify right side
    229,290.60x = 35,926,031,235.42
  5. Step 5: Solve for x
    x = 35,926,031,235.42/229,290.60
  6. Step 6: Final answer
    x = 156,683.40

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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.