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Finding the Fourth Proportional to 170,745.10, 256,040.85 and 65,529.10

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Solution

The fourth proportional to 170,745.10, 256,040.85 and 65,529.10 is: 98,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,745.10 : 256,040.85 = 65,529.10 : x
  2. Step 2: Convert to fraction form
    170,745.10/256,040.85 = 65,529.10/x
  3. Step 3: Cross multiply
    170,745.10x = 256,040.85 × 65,529.10
  4. Step 4: Simplify right side
    170,745.10x = 16,778,126,463.74
  5. Step 5: Solve for x
    x = 16,778,126,463.74/170,745.10
  6. Step 6: Final answer
    x = 98,264.18

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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.