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Finding the Fourth Proportional to 575,963.15, 863,846.26 and 155,140.61

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Solution

The fourth proportional to 575,963.15, 863,846.26 and 155,140.61 is: 232,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,963.15 : 863,846.26 = 155,140.61 : x
  2. Step 2: Convert to fraction form
    575,963.15/863,846.26 = 155,140.61/x
  3. Step 3: Cross multiply
    575,963.15x = 863,846.26 × 155,140.61
  4. Step 4: Simplify right side
    575,963.15x = 134,017,631,015.54
  5. Step 5: Solve for x
    x = 134,017,631,015.54/575,963.15
  6. Step 6: Final answer
    x = 232,684.39

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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.