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Finding the Fourth Proportional to 110,615.40, 165,740.70 and 63,786.60

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Solution

The fourth proportional to 110,615.40, 165,740.70 and 63,786.60 is: 95,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,615.40 : 165,740.70 = 63,786.60 : x
  2. Step 2: Convert to fraction form
    110,615.40/165,740.70 = 63,786.60/x
  3. Step 3: Cross multiply
    110,615.40x = 165,740.70 × 63,786.60
  4. Step 4: Simplify right side
    110,615.40x = 10,572,035,734.62
  5. Step 5: Solve for x
    x = 10,572,035,734.62/110,615.40
  6. Step 6: Final answer
    x = 95,574.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.