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Finding the Fourth Proportional to 118,562.39, 163,615.92 and 70,843.67

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Solution

The fourth proportional to 118,562.39, 163,615.92 and 70,843.67 is: 97,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,562.39 : 163,615.92 = 70,843.67 : x
  2. Step 2: Convert to fraction form
    118,562.39/163,615.92 = 70,843.67/x
  3. Step 3: Cross multiply
    118,562.39x = 163,615.92 × 70,843.67
  4. Step 4: Simplify right side
    118,562.39x = 11,591,152,243.23
  5. Step 5: Solve for x
    x = 11,591,152,243.23/118,562.39
  6. Step 6: Final answer
    x = 97,764.16

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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.