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Finding the Fourth Proportional to 190,843.80, 286,265.70 and 146,693.40

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Solution

The fourth proportional to 190,843.80, 286,265.70 and 146,693.40 is: 220,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,843.80 : 286,265.70 = 146,693.40 : x
  2. Step 2: Convert to fraction form
    190,843.80/286,265.70 = 146,693.40/x
  3. Step 3: Cross multiply
    190,843.80x = 286,265.70 × 146,693.40
  4. Step 4: Simplify right side
    190,843.80x = 41,993,288,836.38
  5. Step 5: Solve for x
    x = 41,993,288,836.38/190,843.80
  6. Step 6: Final answer
    x = 220,040.10

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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.