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Finding the Fourth Proportional to 93,765.72, 129,396.78 and 51,324.96

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Solution

The fourth proportional to 93,765.72, 129,396.78 and 51,324.96 is: 70,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,765.72 : 129,396.78 = 51,324.96 : x
  2. Step 2: Convert to fraction form
    93,765.72/129,396.78 = 51,324.96/x
  3. Step 3: Cross multiply
    93,765.72x = 129,396.78 × 51,324.96
  4. Step 4: Simplify right side
    93,765.72x = 6,641,284,557.63
  5. Step 5: Solve for x
    x = 6,641,284,557.63/93,765.72
  6. Step 6: Final answer
    x = 70,828.49

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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.