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Finding the Fourth Proportional to 255,615.90, 352,751.13 and 146,711.40

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Solution

The fourth proportional to 255,615.90, 352,751.13 and 146,711.40 is: 202,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,615.90 : 352,751.13 = 146,711.40 : x
  2. Step 2: Convert to fraction form
    255,615.90/352,751.13 = 146,711.40/x
  3. Step 3: Cross multiply
    255,615.90x = 352,751.13 × 146,711.40
  4. Step 4: Simplify right side
    255,615.90x = 51,752,612,133.88
  5. Step 5: Solve for x
    x = 51,752,612,133.88/255,615.90
  6. Step 6: Final answer
    x = 202,462.41

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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.