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Finding the Fourth Proportional to 118,609.29, 163,679.37 and 64,893.53

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Solution

The fourth proportional to 118,609.29, 163,679.37 and 64,893.53 is: 89,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,609.29 : 163,679.37 = 64,893.53 : x
  2. Step 2: Convert to fraction form
    118,609.29/163,679.37 = 64,893.53/x
  3. Step 3: Cross multiply
    118,609.29x = 163,679.37 × 64,893.53
  4. Step 4: Simplify right side
    118,609.29x = 10,621,732,273.32
  5. Step 5: Solve for x
    x = 10,621,732,273.32/118,609.29
  6. Step 6: Final answer
    x = 89,552.28

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1.5x scale

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.