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Finding the Fourth Proportional to 316,333.60, 436,550.16 and 173,099.68

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Solution

The fourth proportional to 316,333.60, 436,550.16 and 173,099.68 is: 238,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,333.60 : 436,550.16 = 173,099.68 : x
  2. Step 2: Convert to fraction form
    316,333.60/436,550.16 = 173,099.68/x
  3. Step 3: Cross multiply
    316,333.60x = 436,550.16 × 173,099.68
  4. Step 4: Simplify right side
    316,333.60x = 75,566,692,999.95
  5. Step 5: Solve for x
    x = 75,566,692,999.95/316,333.60
  6. Step 6: Final answer
    x = 238,882.92

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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.