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Finding the Fourth Proportional to 424,892.85, 637,356.86 and 125,373.42

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Solution

The fourth proportional to 424,892.85, 637,356.86 and 125,373.42 is: 188,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,892.85 : 637,356.86 = 125,373.42 : x
  2. Step 2: Convert to fraction form
    424,892.85/637,356.86 = 125,373.42/x
  3. Step 3: Cross multiply
    424,892.85x = 637,356.86 × 125,373.42
  4. Step 4: Simplify right side
    424,892.85x = 79,907,609,298.66
  5. Step 5: Solve for x
    x = 79,907,609,298.66/424,892.85
  6. Step 6: Final answer
    x = 188,065.32

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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.