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Finding the Fourth Proportional to 243,042.20, 364,271.70 and 124,652.60

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Solution

The fourth proportional to 243,042.20, 364,271.70 and 124,652.60 is: 186,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,042.20 : 364,271.70 = 124,652.60 : x
  2. Step 2: Convert to fraction form
    243,042.20/364,271.70 = 124,652.60/x
  3. Step 3: Cross multiply
    243,042.20x = 364,271.70 × 124,652.60
  4. Step 4: Simplify right side
    243,042.20x = 45,407,414,511.42
  5. Step 5: Solve for x
    x = 45,407,414,511.42/243,042.20
  6. Step 6: Final answer
    x = 186,829.34

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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.