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Finding the Fourth Proportional to 110,532.60, 165,798.90 and 79,039.80

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Solution

The fourth proportional to 110,532.60, 165,798.90 and 79,039.80 is: 118,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,532.60 : 165,798.90 = 79,039.80 : x
  2. Step 2: Convert to fraction form
    110,532.60/165,798.90 = 79,039.80/x
  3. Step 3: Cross multiply
    110,532.60x = 165,798.90 × 79,039.80
  4. Step 4: Simplify right side
    110,532.60x = 13,104,711,896.22
  5. Step 5: Solve for x
    x = 13,104,711,896.22/110,532.60
  6. Step 6: Final answer
    x = 118,559.70

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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.