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Finding the Fourth Proportional to 92,762.52, 128,012.49 and 50,321.22

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Solution

The fourth proportional to 92,762.52, 128,012.49 and 50,321.22 is: 69,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,762.52 : 128,012.49 = 50,321.22 : x
  2. Step 2: Convert to fraction form
    92,762.52/128,012.49 = 50,321.22/x
  3. Step 3: Cross multiply
    92,762.52x = 128,012.49 × 50,321.22
  4. Step 4: Simplify right side
    92,762.52x = 6,441,744,672.04
  5. Step 5: Solve for x
    x = 6,441,744,672.04/92,762.52
  6. Step 6: Final answer
    x = 69,443.40

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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.