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Finding the Fourth Proportional to 316,335.37, 436,542.80 and 173,095.42

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Solution

The fourth proportional to 316,335.37, 436,542.80 and 173,095.42 is: 238,871.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,335.37 : 436,542.80 = 173,095.42 : x
  2. Step 2: Convert to fraction form
    316,335.37/436,542.80 = 173,095.42/x
  3. Step 3: Cross multiply
    316,335.37x = 436,542.80 × 173,095.42
  4. Step 4: Simplify right side
    316,335.37x = 75,563,558,448.50
  5. Step 5: Solve for x
    x = 75,563,558,448.50/316,335.37
  6. Step 6: Final answer
    x = 238,871.67

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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.