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Finding the Fourth Proportional to 79,292.80, 118,646.52 and 47,722.24

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Solution

The fourth proportional to 79,292.80, 118,646.52 and 47,722.24 is: 71,407.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,292.80 : 118,646.52 = 47,722.24 : x
  2. Step 2: Convert to fraction form
    79,292.80/118,646.52 = 47,722.24/x
  3. Step 3: Cross multiply
    79,292.80x = 118,646.52 × 47,722.24
  4. Step 4: Simplify right side
    79,292.80x = 5,662,077,702.60
  5. Step 5: Solve for x
    x = 5,662,077,702.60/79,292.80
  6. Step 6: Final answer
    x = 71,407.21

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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.