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Finding the Fourth Proportional to 255,399.87, 352,451.81 and 148,032.18

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Solution

The fourth proportional to 255,399.87, 352,451.81 and 148,032.18 is: 204,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,399.87 : 352,451.81 = 148,032.18 : x
  2. Step 2: Convert to fraction form
    255,399.87/352,451.81 = 148,032.18/x
  3. Step 3: Cross multiply
    255,399.87x = 352,451.81 × 148,032.18
  4. Step 4: Simplify right side
    255,399.87x = 52,174,207,276.83
  5. Step 5: Solve for x
    x = 52,174,207,276.83/255,399.87
  6. Step 6: Final answer
    x = 204,284.40

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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.