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Finding the Fourth Proportional to 425,053.31, 637,727.58 and 188,562.06

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Solution

The fourth proportional to 425,053.31, 637,727.58 and 188,562.06 is: 282,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,053.31 : 637,727.58 = 188,562.06 : x
  2. Step 2: Convert to fraction form
    425,053.31/637,727.58 = 188,562.06/x
  3. Step 3: Cross multiply
    425,053.31x = 637,727.58 × 188,562.06
  4. Step 4: Simplify right side
    425,053.31x = 120,251,226,203.62
  5. Step 5: Solve for x
    x = 120,251,226,203.62/425,053.31
  6. Step 6: Final answer
    x = 282,908.58

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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.