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Finding the Fourth Proportional to 545,054.98, 817,589.76 and 171,077.98

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Solution

The fourth proportional to 545,054.98, 817,589.76 and 171,077.98 is: 256,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,054.98 : 817,589.76 = 171,077.98 : x
  2. Step 2: Convert to fraction form
    545,054.98/817,589.76 = 171,077.98/x
  3. Step 3: Cross multiply
    545,054.98x = 817,589.76 × 171,077.98
  4. Step 4: Simplify right side
    545,054.98x = 139,871,604,609.49
  5. Step 5: Solve for x
    x = 139,871,604,609.49/545,054.98
  6. Step 6: Final answer
    x = 256,619.26

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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.