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Finding the Fourth Proportional to 303,427.68, 455,000.66 and 177,104.40

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Solution

The fourth proportional to 303,427.68, 455,000.66 and 177,104.40 is: 265,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,427.68 : 455,000.66 = 177,104.40 : x
  2. Step 2: Convert to fraction form
    303,427.68/455,000.66 = 177,104.40/x
  3. Step 3: Cross multiply
    303,427.68x = 455,000.66 × 177,104.40
  4. Step 4: Simplify right side
    303,427.68x = 80,582,618,888.90
  5. Step 5: Solve for x
    x = 80,582,618,888.90/303,427.68
  6. Step 6: Final answer
    x = 265,574.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.