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Finding the Fourth Proportional to 423,953.44, 636,053.87 and 171,104.81

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Solution

The fourth proportional to 423,953.44, 636,053.87 and 171,104.81 is: 256,707.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,953.44 : 636,053.87 = 171,104.81 : x
  2. Step 2: Convert to fraction form
    423,953.44/636,053.87 = 171,104.81/x
  3. Step 3: Cross multiply
    423,953.44x = 636,053.87 × 171,104.81
  4. Step 4: Simplify right side
    423,953.44x = 108,831,872,861.14
  5. Step 5: Solve for x
    x = 108,831,872,861.14/423,953.44
  6. Step 6: Final answer
    x = 256,707.13

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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.