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Finding the Fourth Proportional to 118,304.82, 163,259.42 and 64,589.67

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Solution

The fourth proportional to 118,304.82, 163,259.42 and 64,589.67 is: 89,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.82 : 163,259.42 = 64,589.67 : x
  2. Step 2: Convert to fraction form
    118,304.82/163,259.42 = 64,589.67/x
  3. Step 3: Cross multiply
    118,304.82x = 163,259.42 × 64,589.67
  4. Step 4: Simplify right side
    118,304.82x = 10,544,871,739.24
  5. Step 5: Solve for x
    x = 10,544,871,739.24/118,304.82
  6. Step 6: Final answer
    x = 89,133.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.