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Finding the Fourth Proportional to 316,712.94, 437,063.98 and 173,475.38

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Solution

The fourth proportional to 316,712.94, 437,063.98 and 173,475.38 is: 239,396.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,712.94 : 437,063.98 = 173,475.38 : x
  2. Step 2: Convert to fraction form
    316,712.94/437,063.98 = 173,475.38/x
  3. Step 3: Cross multiply
    316,712.94x = 437,063.98 × 173,475.38
  4. Step 4: Simplify right side
    316,712.94x = 75,819,840,014.81
  5. Step 5: Solve for x
    x = 75,819,840,014.81/316,712.94
  6. Step 6: Final answer
    x = 239,396.09

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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.