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Finding the Fourth Proportional to 247,027.68, 340,915.50 and 139,607.64

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Solution

The fourth proportional to 247,027.68, 340,915.50 and 139,607.64 is: 192,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,027.68 : 340,915.50 = 139,607.64 : x
  2. Step 2: Convert to fraction form
    247,027.68/340,915.50 = 139,607.64/x
  3. Step 3: Cross multiply
    247,027.68x = 340,915.50 × 139,607.64
  4. Step 4: Simplify right side
    247,027.68x = 47,594,408,394.42
  5. Step 5: Solve for x
    x = 47,594,408,394.42/247,027.68
  6. Step 6: Final answer
    x = 192,668.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.