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Finding the Fourth Proportional to 128,027.50, 176,744.39 and 93,533.54

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Solution

The fourth proportional to 128,027.50, 176,744.39 and 93,533.54 is: 129,124.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,027.50 : 176,744.39 = 93,533.54 : x
  2. Step 2: Convert to fraction form
    128,027.50/176,744.39 = 93,533.54/x
  3. Step 3: Cross multiply
    128,027.50x = 176,744.39 × 93,533.54
  4. Step 4: Simplify right side
    128,027.50x = 16,531,528,446.03
  5. Step 5: Solve for x
    x = 16,531,528,446.03/128,027.50
  6. Step 6: Final answer
    x = 129,124.83

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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.