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Finding the Fourth Proportional to 67,880.64, 101,688.51 and 44,436

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Solution

The fourth proportional to 67,880.64, 101,688.51 and 44,436 is: 66,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,880.64 : 101,688.51 = 44,436 : x
  2. Step 2: Convert to fraction form
    67,880.64/101,688.51 = 44,436/x
  3. Step 3: Cross multiply
    67,880.64x = 101,688.51 × 44,436
  4. Step 4: Simplify right side
    67,880.64x = 4,518,630,797.00
  5. Step 5: Solve for x
    x = 4,518,630,797.00/67,880.64
  6. Step 6: Final answer
    x = 66,567.30

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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.