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Finding the Fourth Proportional to 247,038.75, 340,913.88 and 133,861.50

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Solution

The fourth proportional to 247,038.75, 340,913.88 and 133,861.50 is: 184,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,038.75 : 340,913.88 = 133,861.50 : x
  2. Step 2: Convert to fraction form
    247,038.75/340,913.88 = 133,861.50/x
  3. Step 3: Cross multiply
    247,038.75x = 340,913.88 × 133,861.50
  4. Step 4: Simplify right side
    247,038.75x = 45,635,243,347.62
  5. Step 5: Solve for x
    x = 45,635,243,347.62/247,038.75
  6. Step 6: Final answer
    x = 184,729.09

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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.