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Finding the Fourth Proportional to 93,883.10, 129,558 and 50,861.66

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Solution

The fourth proportional to 93,883.10, 129,558 and 50,861.66 is: 70,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,883.10 : 129,558 = 50,861.66 : x
  2. Step 2: Convert to fraction form
    93,883.10/129,558 = 50,861.66/x
  3. Step 3: Cross multiply
    93,883.10x = 129,558 × 50,861.66
  4. Step 4: Simplify right side
    93,883.10x = 6,589,534,946.28
  5. Step 5: Solve for x
    x = 6,589,534,946.28/93,883.10
  6. Step 6: Final answer
    x = 70,188.72

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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.