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Finding the Fourth Proportional to 71,359.20, 107,038.80 and 50,623.20

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Solution

The fourth proportional to 71,359.20, 107,038.80 and 50,623.20 is: 75,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.20 : 107,038.80 = 50,623.20 : x
  2. Step 2: Convert to fraction form
    71,359.20/107,038.80 = 50,623.20/x
  3. Step 3: Cross multiply
    71,359.20x = 107,038.80 × 50,623.20
  4. Step 4: Simplify right side
    71,359.20x = 5,418,646,580.16
  5. Step 5: Solve for x
    x = 5,418,646,580.16/71,359.20
  6. Step 6: Final answer
    x = 75,934.80

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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.