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Finding the Fourth Proportional to 235,571.68, 353,171.68 and 117,178.40

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Solution

The fourth proportional to 235,571.68, 353,171.68 and 117,178.40 is: 175,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,571.68 : 353,171.68 = 117,178.40 : x
  2. Step 2: Convert to fraction form
    235,571.68/353,171.68 = 117,178.40/x
  3. Step 3: Cross multiply
    235,571.68x = 353,171.68 × 117,178.40
  4. Step 4: Simplify right side
    235,571.68x = 41,384,092,387.71
  5. Step 5: Solve for x
    x = 41,384,092,387.71/235,571.68
  6. Step 6: Final answer
    x = 175,675.16

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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.