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Finding the Fourth Proportional to 118,608.67, 163,663.80 and 70,851.88

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Solution

The fourth proportional to 118,608.67, 163,663.80 and 70,851.88 is: 97,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,608.67 : 163,663.80 = 70,851.88 : x
  2. Step 2: Convert to fraction form
    118,608.67/163,663.80 = 70,851.88/x
  3. Step 3: Cross multiply
    118,608.67x = 163,663.80 × 70,851.88
  4. Step 4: Simplify right side
    118,608.67x = 11,595,887,563.68
  5. Step 5: Solve for x
    x = 11,595,887,563.68/118,608.67
  6. Step 6: Final answer
    x = 97,765.94

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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.