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Finding the Fourth Proportional to 93,800.26, 129,443.38 and 50,779

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Solution

The fourth proportional to 93,800.26, 129,443.38 and 50,779 is: 70,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,800.26 : 129,443.38 = 50,779 : x
  2. Step 2: Convert to fraction form
    93,800.26/129,443.38 = 50,779/x
  3. Step 3: Cross multiply
    93,800.26x = 129,443.38 × 50,779
  4. Step 4: Simplify right side
    93,800.26x = 6,573,005,393.02
  5. Step 5: Solve for x
    x = 6,573,005,393.02/93,800.26
  6. Step 6: Final answer
    x = 70,074.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.