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Finding the Fourth Proportional to 79,077.80, 118,616.70 and 32,364.20

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Solution

The fourth proportional to 79,077.80, 118,616.70 and 32,364.20 is: 48,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.80 : 118,616.70 = 32,364.20 : x
  2. Step 2: Convert to fraction form
    79,077.80/118,616.70 = 32,364.20/x
  3. Step 3: Cross multiply
    79,077.80x = 118,616.70 × 32,364.20
  4. Step 4: Simplify right side
    79,077.80x = 3,838,934,602.14
  5. Step 5: Solve for x
    x = 3,838,934,602.14/79,077.80
  6. Step 6: Final answer
    x = 48,546.30

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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.