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Finding the Fourth Proportional to 255,846.10, 353,130.90 and 174,309.28

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Solution

The fourth proportional to 255,846.10, 353,130.90 and 174,309.28 is: 240,589.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,846.10 : 353,130.90 = 174,309.28 : x
  2. Step 2: Convert to fraction form
    255,846.10/353,130.90 = 174,309.28/x
  3. Step 3: Cross multiply
    255,846.10x = 353,130.90 × 174,309.28
  4. Step 4: Simplify right side
    255,846.10x = 61,553,992,924.75
  5. Step 5: Solve for x
    x = 61,553,992,924.75/255,846.10
  6. Step 6: Final answer
    x = 240,589.92

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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.