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Finding the Fourth Proportional to 79,225.58, 118,838.65 and 20,061.23

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Solution

The fourth proportional to 79,225.58, 118,838.65 and 20,061.23 is: 30,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,225.58 : 118,838.65 = 20,061.23 : x
  2. Step 2: Convert to fraction form
    79,225.58/118,838.65 = 20,061.23/x
  3. Step 3: Cross multiply
    79,225.58x = 118,838.65 × 20,061.23
  4. Step 4: Simplify right side
    79,225.58x = 2,384,048,846.19
  5. Step 5: Solve for x
    x = 2,384,048,846.19/79,225.58
  6. Step 6: Final answer
    x = 30,091.91

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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.