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Finding the Fourth Proportional to 93,861.42, 129,532 and 51,419.94

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Solution

The fourth proportional to 93,861.42, 129,532 and 51,419.94 is: 70,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,861.42 : 129,532 = 51,419.94 : x
  2. Step 2: Convert to fraction form
    93,861.42/129,532 = 51,419.94/x
  3. Step 3: Cross multiply
    93,861.42x = 129,532 × 51,419.94
  4. Step 4: Simplify right side
    93,861.42x = 6,660,527,668.08
  5. Step 5: Solve for x
    x = 6,660,527,668.08/93,861.42
  6. Step 6: Final answer
    x = 70,961.29

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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.