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Finding the Fourth Proportional to 316,896.64, 437,328.02 and 173,655.43

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Solution

The fourth proportional to 316,896.64, 437,328.02 and 173,655.43 is: 239,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,896.64 : 437,328.02 = 173,655.43 : x
  2. Step 2: Convert to fraction form
    316,896.64/437,328.02 = 173,655.43/x
  3. Step 3: Cross multiply
    316,896.64x = 437,328.02 × 173,655.43
  4. Step 4: Simplify right side
    316,896.64x = 75,944,385,364.15
  5. Step 5: Solve for x
    x = 75,944,385,364.15/316,896.64
  6. Step 6: Final answer
    x = 239,650.33

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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.