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Finding the Fourth Proportional to 303,429.68, 455,003.66 and 177,106.40

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Solution

The fourth proportional to 303,429.68, 455,003.66 and 177,106.40 is: 265,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,429.68 : 455,003.66 = 177,106.40 : x
  2. Step 2: Convert to fraction form
    303,429.68/455,003.66 = 177,106.40/x
  3. Step 3: Cross multiply
    303,429.68x = 455,003.66 × 177,106.40
  4. Step 4: Simplify right side
    303,429.68x = 80,584,060,209.42
  5. Step 5: Solve for x
    x = 80,584,060,209.42/303,429.68
  6. Step 6: Final answer
    x = 265,577.38

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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.