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Finding the Fourth Proportional to 93,789.01, 129,441.16 and 53,493.54

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Solution

The fourth proportional to 93,789.01, 129,441.16 and 53,493.54 is: 73,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,789.01 : 129,441.16 = 53,493.54 : x
  2. Step 2: Convert to fraction form
    93,789.01/129,441.16 = 53,493.54/x
  3. Step 3: Cross multiply
    93,789.01x = 129,441.16 × 53,493.54
  4. Step 4: Simplify right side
    93,789.01x = 6,924,265,451.57
  5. Step 5: Solve for x
    x = 6,924,265,451.57/93,789.01
  6. Step 6: Final answer
    x = 73,828.11

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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.