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Finding the Fourth Proportional to 330,955.92, 456,877.80 and 203,740.56

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Solution

The fourth proportional to 330,955.92, 456,877.80 and 203,740.56 is: 281,259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,955.92 : 456,877.80 = 203,740.56 : x
  2. Step 2: Convert to fraction form
    330,955.92/456,877.80 = 203,740.56/x
  3. Step 3: Cross multiply
    330,955.92x = 456,877.80 × 203,740.56
  4. Step 4: Simplify right side
    330,955.92x = 93,084,538,823.57
  5. Step 5: Solve for x
    x = 93,084,538,823.57/330,955.92
  6. Step 6: Final answer
    x = 281,259.63

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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.