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Finding the Fourth Proportional to 90,762.31, 125,233.50 and 53,029.27

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Solution

The fourth proportional to 90,762.31, 125,233.50 and 53,029.27 is: 73,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,762.31 : 125,233.50 = 53,029.27 : x
  2. Step 2: Convert to fraction form
    90,762.31/125,233.50 = 53,029.27/x
  3. Step 3: Cross multiply
    90,762.31x = 125,233.50 × 53,029.27
  4. Step 4: Simplify right side
    90,762.31x = 6,641,041,084.55
  5. Step 5: Solve for x
    x = 6,641,041,084.55/90,762.31
  6. Step 6: Final answer
    x = 73,169.59

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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.