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Finding the Fourth Proportional to 400,977.39, 601,089.34 and 134,551.06

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Solution

The fourth proportional to 400,977.39, 601,089.34 and 134,551.06 is: 201,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,977.39 : 601,089.34 = 134,551.06 : x
  2. Step 2: Convert to fraction form
    400,977.39/601,089.34 = 134,551.06/x
  3. Step 3: Cross multiply
    400,977.39x = 601,089.34 × 134,551.06
  4. Step 4: Simplify right side
    400,977.39x = 80,877,207,851.70
  5. Step 5: Solve for x
    x = 80,877,207,851.70/400,977.39
  6. Step 6: Final answer
    x = 201,700.17

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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.