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Finding the Fourth Proportional to 185,390.43, 255,828.54 and 104,812.84

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Solution

The fourth proportional to 185,390.43, 255,828.54 and 104,812.84 is: 144,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,390.43 : 255,828.54 = 104,812.84 : x
  2. Step 2: Convert to fraction form
    185,390.43/255,828.54 = 104,812.84/x
  3. Step 3: Cross multiply
    185,390.43x = 255,828.54 × 104,812.84
  4. Step 4: Simplify right side
    185,390.43x = 26,814,115,830.45
  5. Step 5: Solve for x
    x = 26,814,115,830.45/185,390.43
  6. Step 6: Final answer
    x = 144,635.92

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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.