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Finding the Fourth Proportional to 356,082.80, 534,210.60 and 251,106.80

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Solution

The fourth proportional to 356,082.80, 534,210.60 and 251,106.80 is: 376,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,082.80 : 534,210.60 = 251,106.80 : x
  2. Step 2: Convert to fraction form
    356,082.80/534,210.60 = 251,106.80/x
  3. Step 3: Cross multiply
    356,082.80x = 534,210.60 × 251,106.80
  4. Step 4: Simplify right side
    356,082.80x = 134,143,914,292.08
  5. Step 5: Solve for x
    x = 134,143,914,292.08/356,082.80
  6. Step 6: Final answer
    x = 376,721.13

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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.