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Finding the Fourth Proportional to 575,518.72, 863,130.78 and 170,616.24

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Solution

The fourth proportional to 575,518.72, 863,130.78 and 170,616.24 is: 255,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,518.72 : 863,130.78 = 170,616.24 : x
  2. Step 2: Convert to fraction form
    575,518.72/863,130.78 = 170,616.24/x
  3. Step 3: Cross multiply
    575,518.72x = 863,130.78 × 170,616.24
  4. Step 4: Simplify right side
    575,518.72x = 147,264,131,113.44
  5. Step 5: Solve for x
    x = 147,264,131,113.44/575,518.72
  6. Step 6: Final answer
    x = 255,880.70

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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.