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Finding the Fourth Proportional to 235,409.96, 353,004.36 and 85,544.56

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Solution

The fourth proportional to 235,409.96, 353,004.36 and 85,544.56 is: 128,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,409.96 : 353,004.36 = 85,544.56 : x
  2. Step 2: Convert to fraction form
    235,409.96/353,004.36 = 85,544.56/x
  3. Step 3: Cross multiply
    235,409.96x = 353,004.36 × 85,544.56
  4. Step 4: Simplify right side
    235,409.96x = 30,197,602,654.28
  5. Step 5: Solve for x
    x = 30,197,602,654.28/235,409.96
  6. Step 6: Final answer
    x = 128,276.66

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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.