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Finding the Fourth Proportional to 293,442.75, 404,955.20 and 170,931.98

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Solution

The fourth proportional to 293,442.75, 404,955.20 and 170,931.98 is: 235,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,442.75 : 404,955.20 = 170,931.98 : x
  2. Step 2: Convert to fraction form
    293,442.75/404,955.20 = 170,931.98/x
  3. Step 3: Cross multiply
    293,442.75x = 404,955.20 × 170,931.98
  4. Step 4: Simplify right side
    293,442.75x = 69,219,794,305.02
  5. Step 5: Solve for x
    x = 69,219,794,305.02/293,442.75
  6. Step 6: Final answer
    x = 235,888.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.