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Finding the Fourth Proportional to 255,478.63, 352,560.62 and 148,110.90

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Solution

The fourth proportional to 255,478.63, 352,560.62 and 148,110.90 is: 204,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,478.63 : 352,560.62 = 148,110.90 : x
  2. Step 2: Convert to fraction form
    255,478.63/352,560.62 = 148,110.90/x
  3. Step 3: Cross multiply
    255,478.63x = 352,560.62 × 148,110.90
  4. Step 4: Simplify right side
    255,478.63x = 52,218,070,732.76
  5. Step 5: Solve for x
    x = 52,218,070,732.76/255,478.63
  6. Step 6: Final answer
    x = 204,393.11

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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.