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Finding the Fourth Proportional to 79,259.58, 118,889.58 and 20,095.28

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Solution

The fourth proportional to 79,259.58, 118,889.58 and 20,095.28 is: 30,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259.58 : 118,889.58 = 20,095.28 : x
  2. Step 2: Convert to fraction form
    79,259.58/118,889.58 = 20,095.28/x
  3. Step 3: Cross multiply
    79,259.58x = 118,889.58 × 20,095.28
  4. Step 4: Simplify right side
    79,259.58x = 2,389,119,399.18
  5. Step 5: Solve for x
    x = 2,389,119,399.18/79,259.58
  6. Step 6: Final answer
    x = 30,142.97

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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.