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Finding the Fourth Proportional to 575,640.30, 863,382.68 and 154,941.42

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Solution

The fourth proportional to 575,640.30, 863,382.68 and 154,941.42 is: 232,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,640.30 : 863,382.68 = 154,941.42 : x
  2. Step 2: Convert to fraction form
    575,640.30/863,382.68 = 154,941.42/x
  3. Step 3: Cross multiply
    575,640.30x = 863,382.68 × 154,941.42
  4. Step 4: Simplify right side
    575,640.30x = 133,773,738,442.61
  5. Step 5: Solve for x
    x = 133,773,738,442.61/575,640.30
  6. Step 6: Final answer
    x = 232,391.20

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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.