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Finding the Fourth Proportional to 316,703.29, 437,059.03 and 178,871.16

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Solution

The fourth proportional to 316,703.29, 437,059.03 and 178,871.16 is: 246,846.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,703.29 : 437,059.03 = 178,871.16 : x
  2. Step 2: Convert to fraction form
    316,703.29/437,059.03 = 178,871.16/x
  3. Step 3: Cross multiply
    316,703.29x = 437,059.03 × 178,871.16
  4. Step 4: Simplify right side
    316,703.29x = 78,177,255,039.11
  5. Step 5: Solve for x
    x = 78,177,255,039.11/316,703.29
  6. Step 6: Final answer
    x = 246,846.99

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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.