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Finding the Fourth Proportional to 71,210.56, 106,693.04 and 47,179.84

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Solution

The fourth proportional to 71,210.56, 106,693.04 and 47,179.84 is: 70,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,210.56 : 106,693.04 = 47,179.84 : x
  2. Step 2: Convert to fraction form
    71,210.56/106,693.04 = 47,179.84/x
  3. Step 3: Cross multiply
    71,210.56x = 106,693.04 × 47,179.84
  4. Step 4: Simplify right side
    71,210.56x = 5,033,760,556.31
  5. Step 5: Solve for x
    x = 5,033,760,556.31/71,210.56
  6. Step 6: Final answer
    x = 70,688.40

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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.