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Finding the Fourth Proportional to 71,083.20, 106,527.60 and 47,323.20

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Solution

The fourth proportional to 71,083.20, 106,527.60 and 47,323.20 is: 70,920.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,083.20 : 106,527.60 = 47,323.20 : x
  2. Step 2: Convert to fraction form
    71,083.20/106,527.60 = 47,323.20/x
  3. Step 3: Cross multiply
    71,083.20x = 106,527.60 × 47,323.20
  4. Step 4: Simplify right side
    71,083.20x = 5,041,226,920.32
  5. Step 5: Solve for x
    x = 5,041,226,920.32/71,083.20
  6. Step 6: Final answer
    x = 70,920.09

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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.