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Finding the Fourth Proportional to 316,991.76, 437,423.64 and 182,829.84

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Solution

The fourth proportional to 316,991.76, 437,423.64 and 182,829.84 is: 252,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,991.76 : 437,423.64 = 182,829.84 : x
  2. Step 2: Convert to fraction form
    316,991.76/437,423.64 = 182,829.84/x
  3. Step 3: Cross multiply
    316,991.76x = 437,423.64 × 182,829.84
  4. Step 4: Simplify right side
    316,991.76x = 79,974,094,113.42
  5. Step 5: Solve for x
    x = 79,974,094,113.42/316,991.76
  6. Step 6: Final answer
    x = 252,290.77

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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.