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Finding the Fourth Proportional to 235,425.60, 353,311.20 and 156,513.60

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Solution

The fourth proportional to 235,425.60, 353,311.20 and 156,513.60 is: 234,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,425.60 : 353,311.20 = 156,513.60 : x
  2. Step 2: Convert to fraction form
    235,425.60/353,311.20 = 156,513.60/x
  3. Step 3: Cross multiply
    235,425.60x = 353,311.20 × 156,513.60
  4. Step 4: Simplify right side
    235,425.60x = 55,298,007,832.32
  5. Step 5: Solve for x
    x = 55,298,007,832.32/235,425.60
  6. Step 6: Final answer
    x = 234,885.28

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1.5x scale

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.