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Finding the Fourth Proportional to 316,402.58, 474,591.44 and 116,636.60

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Solution

The fourth proportional to 316,402.58, 474,591.44 and 116,636.60 is: 174,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,402.58 : 474,591.44 = 116,636.60 : x
  2. Step 2: Convert to fraction form
    316,402.58/474,591.44 = 116,636.60/x
  3. Step 3: Cross multiply
    316,402.58x = 474,591.44 × 116,636.60
  4. Step 4: Simplify right side
    316,402.58x = 55,354,731,950.70
  5. Step 5: Solve for x
    x = 55,354,731,950.70/316,402.58
  6. Step 6: Final answer
    x = 174,950.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.