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Finding the Fourth Proportional to 185,892.60, 278,838.90 and 133,793.40

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Solution

The fourth proportional to 185,892.60, 278,838.90 and 133,793.40 is: 200,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,892.60 : 278,838.90 = 133,793.40 : x
  2. Step 2: Convert to fraction form
    185,892.60/278,838.90 = 133,793.40/x
  3. Step 3: Cross multiply
    185,892.60x = 278,838.90 × 133,793.40
  4. Step 4: Simplify right side
    185,892.60x = 37,306,804,483.26
  5. Step 5: Solve for x
    x = 37,306,804,483.26/185,892.60
  6. Step 6: Final answer
    x = 200,690.10

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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.