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Finding the Fourth Proportional to 77,200.52, 105,563.90 and 77,200.52

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Solution

The fourth proportional to 77,200.52, 105,563.90 and 77,200.52 is: 105,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,200.52 : 105,563.90 = 77,200.52 : x
  2. Step 2: Convert to fraction form
    77,200.52/105,563.90 = 77,200.52/x
  3. Step 3: Cross multiply
    77,200.52x = 105,563.90 × 77,200.52
  4. Step 4: Simplify right side
    77,200.52x = 8,149,587,638.41
  5. Step 5: Solve for x
    x = 8,149,587,638.41/77,200.52
  6. Step 6: Final answer
    x = 105,563.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.