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Finding the Fourth Proportional to 355,165.09, 532,752.25 and 118,507.77

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Solution

The fourth proportional to 355,165.09, 532,752.25 and 118,507.77 is: 177,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,165.09 : 532,752.25 = 118,507.77 : x
  2. Step 2: Convert to fraction form
    355,165.09/532,752.25 = 118,507.77/x
  3. Step 3: Cross multiply
    355,165.09x = 532,752.25 × 118,507.77
  4. Step 4: Simplify right side
    355,165.09x = 63,135,278,439.39
  5. Step 5: Solve for x
    x = 63,135,278,439.39/355,165.09
  6. Step 6: Final answer
    x = 177,763.19

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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.