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Finding the Fourth Proportional to 316,184.92, 436,325.94 and 172,941.89

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Solution

The fourth proportional to 316,184.92, 436,325.94 and 172,941.89 is: 238,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,184.92 : 436,325.94 = 172,941.89 : x
  2. Step 2: Convert to fraction form
    316,184.92/436,325.94 = 172,941.89/x
  3. Step 3: Cross multiply
    316,184.92x = 436,325.94 × 172,941.89
  4. Step 4: Simplify right side
    316,184.92x = 75,459,030,538.00
  5. Step 5: Solve for x
    x = 75,459,030,538.00/316,184.92
  6. Step 6: Final answer
    x = 238,654.74

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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.