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Finding the Fourth Proportional to 318,194.64, 439,110.54 and 174,955.86

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Solution

The fourth proportional to 318,194.64, 439,110.54 and 174,955.86 is: 241,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,194.64 : 439,110.54 = 174,955.86 : x
  2. Step 2: Convert to fraction form
    318,194.64/439,110.54 = 174,955.86/x
  3. Step 3: Cross multiply
    318,194.64x = 439,110.54 × 174,955.86
  4. Step 4: Simplify right side
    318,194.64x = 76,824,962,160.76
  5. Step 5: Solve for x
    x = 76,824,962,160.76/318,194.64
  6. Step 6: Final answer
    x = 241,440.15

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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.