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Finding the Fourth Proportional to 190,794.92, 286,192.40 and 66,135.92

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Solution

The fourth proportional to 190,794.92, 286,192.40 and 66,135.92 is: 99,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,794.92 : 286,192.40 = 66,135.92 : x
  2. Step 2: Convert to fraction form
    190,794.92/286,192.40 = 66,135.92/x
  3. Step 3: Cross multiply
    190,794.92x = 286,192.40 × 66,135.92
  4. Step 4: Simplify right side
    190,794.92x = 18,927,597,671.01
  5. Step 5: Solve for x
    x = 18,927,597,671.01/190,794.92
  6. Step 6: Final answer
    x = 99,203.89

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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.