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Finding the Fourth Proportional to 128,794.70, 193,193.40 and 35,300.45

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Solution

The fourth proportional to 128,794.70, 193,193.40 and 35,300.45 is: 52,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,794.70 : 193,193.40 = 35,300.45 : x
  2. Step 2: Convert to fraction form
    128,794.70/193,193.40 = 35,300.45/x
  3. Step 3: Cross multiply
    128,794.70x = 193,193.40 × 35,300.45
  4. Step 4: Simplify right side
    128,794.70x = 6,819,813,957.03
  5. Step 5: Solve for x
    x = 6,819,813,957.03/128,794.70
  6. Step 6: Final answer
    x = 52,951.05

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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.