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Finding the Fourth Proportional to 185,892.10, 278,838.15 and 133,792.90

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Solution

The fourth proportional to 185,892.10, 278,838.15 and 133,792.90 is: 200,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,892.10 : 278,838.15 = 133,792.90 : x
  2. Step 2: Convert to fraction form
    185,892.10/278,838.15 = 133,792.90/x
  3. Step 3: Cross multiply
    185,892.10x = 278,838.15 × 133,792.90
  4. Step 4: Simplify right side
    185,892.10x = 37,306,564,719.14
  5. Step 5: Solve for x
    x = 37,306,564,719.14/185,892.10
  6. Step 6: Final answer
    x = 200,689.35

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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.