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Finding the Fourth Proportional to 93,425.76, 128,945.07 and 58,516.53

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Solution

The fourth proportional to 93,425.76, 128,945.07 and 58,516.53 is: 80,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,425.76 : 128,945.07 = 58,516.53 : x
  2. Step 2: Convert to fraction form
    93,425.76/128,945.07 = 58,516.53/x
  3. Step 3: Cross multiply
    93,425.76x = 128,945.07 × 58,516.53
  4. Step 4: Simplify right side
    93,425.76x = 7,545,418,057.01
  5. Step 5: Solve for x
    x = 7,545,418,057.01/93,425.76
  6. Step 6: Final answer
    x = 80,763.79

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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.