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Finding the Fourth Proportional to 316,146.88, 436,281.68 and 170,951.60

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Solution

The fourth proportional to 316,146.88, 436,281.68 and 170,951.60 is: 235,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,146.88 : 436,281.68 = 170,951.60 : x
  2. Step 2: Convert to fraction form
    316,146.88/436,281.68 = 170,951.60/x
  3. Step 3: Cross multiply
    316,146.88x = 436,281.68 × 170,951.60
  4. Step 4: Simplify right side
    316,146.88x = 74,583,051,246.69
  5. Step 5: Solve for x
    x = 74,583,051,246.69/316,146.88
  6. Step 6: Final answer
    x = 235,912.66

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1.5x scale

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.