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Finding the Fourth Proportional to 425,076.82, 637,762.83 and 188,585.56

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Solution

The fourth proportional to 425,076.82, 637,762.83 and 188,585.56 is: 282,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,076.82 : 637,762.83 = 188,585.56 : x
  2. Step 2: Convert to fraction form
    425,076.82/637,762.83 = 188,585.56/x
  3. Step 3: Cross multiply
    425,076.82x = 637,762.83 × 188,585.56
  4. Step 4: Simplify right side
    425,076.82x = 120,272,860,442.74
  5. Step 5: Solve for x
    x = 120,272,860,442.74/425,076.82
  6. Step 6: Final answer
    x = 282,943.82

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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.