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Finding the Fourth Proportional to 186,719, 279,479.10 and 97,845.80

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Solution

The fourth proportional to 186,719, 279,479.10 and 97,845.80 is: 146,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,719 : 279,479.10 = 97,845.80 : x
  2. Step 2: Convert to fraction form
    186,719/279,479.10 = 97,845.80/x
  3. Step 3: Cross multiply
    186,719x = 279,479.10 × 97,845.80
  4. Step 4: Simplify right side
    186,719x = 27,345,856,122.78
  5. Step 5: Solve for x
    x = 27,345,856,122.78/186,719
  6. Step 6: Final answer
    x = 146,454.60

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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.