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Finding the Fourth Proportional to 190,078.60, 284,772.30 and 154,827.40

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Solution

The fourth proportional to 190,078.60, 284,772.30 and 154,827.40 is: 231,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,078.60 : 284,772.30 = 154,827.40 : x
  2. Step 2: Convert to fraction form
    190,078.60/284,772.30 = 154,827.40/x
  3. Step 3: Cross multiply
    190,078.60x = 284,772.30 × 154,827.40
  4. Step 4: Simplify right side
    190,078.60x = 44,090,554,801.02
  5. Step 5: Solve for x
    x = 44,090,554,801.02/190,078.60
  6. Step 6: Final answer
    x = 231,959.59

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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.