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Finding the Fourth Proportional to 116,082.58, 174,123.87 and 76,630.45

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Solution

The fourth proportional to 116,082.58, 174,123.87 and 76,630.45 is: 114,945.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,082.58 : 174,123.87 = 76,630.45 : x
  2. Step 2: Convert to fraction form
    116,082.58/174,123.87 = 76,630.45/x
  3. Step 3: Cross multiply
    116,082.58x = 174,123.87 × 76,630.45
  4. Step 4: Simplify right side
    116,082.58x = 13,343,190,513.84
  5. Step 5: Solve for x
    x = 13,343,190,513.84/116,082.58
  6. Step 6: Final answer
    x = 114,945.68

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1.5x scale

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.