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Finding the Fourth Proportional to 190,465.40, 285,671.67 and 133,366.17

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Solution

The fourth proportional to 190,465.40, 285,671.67 and 133,366.17 is: 200,030.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,465.40 : 285,671.67 = 133,366.17 : x
  2. Step 2: Convert to fraction form
    190,465.40/285,671.67 = 133,366.17/x
  3. Step 3: Cross multiply
    190,465.40x = 285,671.67 × 133,366.17
  4. Step 4: Simplify right side
    190,465.40x = 38,098,936,505.40
  5. Step 5: Solve for x
    x = 38,098,936,505.40/190,465.40
  6. Step 6: Final answer
    x = 200,030.75

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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.