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Finding the Fourth Proportional to 93,109.46, 128,485.46 and 52,270.56

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Solution

The fourth proportional to 93,109.46, 128,485.46 and 52,270.56 is: 72,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,109.46 : 128,485.46 = 52,270.56 : x
  2. Step 2: Convert to fraction form
    93,109.46/128,485.46 = 52,270.56/x
  3. Step 3: Cross multiply
    93,109.46x = 128,485.46 × 52,270.56
  4. Step 4: Simplify right side
    93,109.46x = 6,716,007,076.73
  5. Step 5: Solve for x
    x = 6,716,007,076.73/93,109.46
  6. Step 6: Final answer
    x = 72,130.24

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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.