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Finding the Fourth Proportional to 71,019.20, 106,528.80 and 44,753.60

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Solution

The fourth proportional to 71,019.20, 106,528.80 and 44,753.60 is: 67,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.20 : 106,528.80 = 44,753.60 : x
  2. Step 2: Convert to fraction form
    71,019.20/106,528.80 = 44,753.60/x
  3. Step 3: Cross multiply
    71,019.20x = 106,528.80 × 44,753.60
  4. Step 4: Simplify right side
    71,019.20x = 4,767,547,303.68
  5. Step 5: Solve for x
    x = 4,767,547,303.68/71,019.20
  6. Step 6: Final answer
    x = 67,130.40

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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.