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Finding the Fourth Proportional to 118,558.35, 163,610.13 and 64,110.15

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Solution

The fourth proportional to 118,558.35, 163,610.13 and 64,110.15 is: 88,471.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,558.35 : 163,610.13 = 64,110.15 : x
  2. Step 2: Convert to fraction form
    118,558.35/163,610.13 = 64,110.15/x
  3. Step 3: Cross multiply
    118,558.35x = 163,610.13 × 64,110.15
  4. Step 4: Simplify right side
    118,558.35x = 10,489,069,975.82
  5. Step 5: Solve for x
    x = 10,489,069,975.82/118,558.35
  6. Step 6: Final answer
    x = 88,471.79

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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.