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Finding the Fourth Proportional to 354,378.10, 531,567.15 and 117,744.70

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Solution

The fourth proportional to 354,378.10, 531,567.15 and 117,744.70 is: 176,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,378.10 : 531,567.15 = 117,744.70 : x
  2. Step 2: Convert to fraction form
    354,378.10/531,567.15 = 117,744.70/x
  3. Step 3: Cross multiply
    354,378.10x = 531,567.15 × 117,744.70
  4. Step 4: Simplify right side
    354,378.10x = 62,589,214,606.61
  5. Step 5: Solve for x
    x = 62,589,214,606.61/354,378.10
  6. Step 6: Final answer
    x = 176,617.05

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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.