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Finding the Fourth Proportional to 235,632.10, 353,620.95 and 156,720.10

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Solution

The fourth proportional to 235,632.10, 353,620.95 and 156,720.10 is: 235,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,632.10 : 353,620.95 = 156,720.10 : x
  2. Step 2: Convert to fraction form
    235,632.10/353,620.95 = 156,720.10/x
  3. Step 3: Cross multiply
    235,632.10x = 353,620.95 × 156,720.10
  4. Step 4: Simplify right side
    235,632.10x = 55,419,510,646.10
  5. Step 5: Solve for x
    x = 55,419,510,646.10/235,632.10
  6. Step 6: Final answer
    x = 235,195.08

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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.