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Finding the Fourth Proportional to 128,470.73, 192,692.23 and 33,710.45

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Solution

The fourth proportional to 128,470.73, 192,692.23 and 33,710.45 is: 50,562.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,470.73 : 192,692.23 = 33,710.45 : x
  2. Step 2: Convert to fraction form
    128,470.73/192,692.23 = 33,710.45/x
  3. Step 3: Cross multiply
    128,470.73x = 192,692.23 × 33,710.45
  4. Step 4: Simplify right side
    128,470.73x = 6,495,740,737.07
  5. Step 5: Solve for x
    x = 6,495,740,737.07/128,470.73
  6. Step 6: Final answer
    x = 50,562.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.