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Finding the Fourth Proportional to 355,241.10, 532,861.65 and 243,266.70

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Solution

The fourth proportional to 355,241.10, 532,861.65 and 243,266.70 is: 364,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,241.10 : 532,861.65 = 243,266.70 : x
  2. Step 2: Convert to fraction form
    355,241.10/532,861.65 = 243,266.70/x
  3. Step 3: Cross multiply
    355,241.10x = 532,861.65 × 243,266.70
  4. Step 4: Simplify right side
    355,241.10x = 129,627,495,152.06
  5. Step 5: Solve for x
    x = 129,627,495,152.06/355,241.10
  6. Step 6: Final answer
    x = 364,900.05

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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.