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Finding the Fourth Proportional to 293,091.65, 439,407.80 and 115,731.41

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Solution

The fourth proportional to 293,091.65, 439,407.80 and 115,731.41 is: 173,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,091.65 : 439,407.80 = 115,731.41 : x
  2. Step 2: Convert to fraction form
    293,091.65/439,407.80 = 115,731.41/x
  3. Step 3: Cross multiply
    293,091.65x = 439,407.80 × 115,731.41
  4. Step 4: Simplify right side
    293,091.65x = 50,853,281,483.30
  5. Step 5: Solve for x
    x = 50,853,281,483.30/293,091.65
  6. Step 6: Final answer
    x = 173,506.42

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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.