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Finding the Fourth Proportional to 66,880.08, 100,337.13 and 47,197.08

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Solution

The fourth proportional to 66,880.08, 100,337.13 and 47,197.08 is: 70,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.08 : 100,337.13 = 47,197.08 : x
  2. Step 2: Convert to fraction form
    66,880.08/100,337.13 = 47,197.08/x
  3. Step 3: Cross multiply
    66,880.08x = 100,337.13 × 47,197.08
  4. Step 4: Simplify right side
    66,880.08x = 4,735,619,551.58
  5. Step 5: Solve for x
    x = 4,735,619,551.58/66,880.08
  6. Step 6: Final answer
    x = 70,807.62

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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.