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Finding the Fourth Proportional to 400,953.25, 601,519.55 and 134,706.45

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Solution

The fourth proportional to 400,953.25, 601,519.55 and 134,706.45 is: 202,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,953.25 : 601,519.55 = 134,706.45 : x
  2. Step 2: Convert to fraction form
    400,953.25/601,519.55 = 134,706.45/x
  3. Step 3: Cross multiply
    400,953.25x = 601,519.55 × 134,706.45
  4. Step 4: Simplify right side
    400,953.25x = 81,028,563,186.10
  5. Step 5: Solve for x
    x = 81,028,563,186.10/400,953.25
  6. Step 6: Final answer
    x = 202,089.80

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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.