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Finding the Fourth Proportional to 207,499.60, 286,345.68 and 116,855.20

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Solution

The fourth proportional to 207,499.60, 286,345.68 and 116,855.20 is: 161,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,499.60 : 286,345.68 = 116,855.20 : x
  2. Step 2: Convert to fraction form
    207,499.60/286,345.68 = 116,855.20/x
  3. Step 3: Cross multiply
    207,499.60x = 286,345.68 × 116,855.20
  4. Step 4: Simplify right side
    207,499.60x = 33,460,981,705.54
  5. Step 5: Solve for x
    x = 33,460,981,705.54/207,499.60
  6. Step 6: Final answer
    x = 161,258.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.