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Finding the Fourth Proportional to 71,113.20, 106,756.20 and 53,444.40

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Solution

The fourth proportional to 71,113.20, 106,756.20 and 53,444.40 is: 80,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,113.20 : 106,756.20 = 53,444.40 : x
  2. Step 2: Convert to fraction form
    71,113.20/106,756.20 = 53,444.40/x
  3. Step 3: Cross multiply
    71,113.20x = 106,756.20 × 53,444.40
  4. Step 4: Simplify right side
    71,113.20x = 5,705,521,055.28
  5. Step 5: Solve for x
    x = 5,705,521,055.28/71,113.20
  6. Step 6: Final answer
    x = 80,231.53

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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.