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Finding the Fourth Proportional to 255,399.61, 352,451.46 and 148,031.92

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Solution

The fourth proportional to 255,399.61, 352,451.46 and 148,031.92 is: 204,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,399.61 : 352,451.46 = 148,031.92 : x
  2. Step 2: Convert to fraction form
    255,399.61/352,451.46 = 148,031.92/x
  3. Step 3: Cross multiply
    255,399.61x = 352,451.46 × 148,031.92
  4. Step 4: Simplify right side
    255,399.61x = 52,174,066,330.60
  5. Step 5: Solve for x
    x = 52,174,066,330.60/255,399.61
  6. Step 6: Final answer
    x = 204,284.05

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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.