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Finding the Fourth Proportional to 260,332.87, 359,292.63 and 145,617.89

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Solution

The fourth proportional to 260,332.87, 359,292.63 and 145,617.89 is: 200,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,332.87 : 359,292.63 = 145,617.89 : x
  2. Step 2: Convert to fraction form
    260,332.87/359,292.63 = 145,617.89/x
  3. Step 3: Cross multiply
    260,332.87x = 359,292.63 × 145,617.89
  4. Step 4: Simplify right side
    260,332.87x = 52,319,432,876.69
  5. Step 5: Solve for x
    x = 52,319,432,876.69/260,332.87
  6. Step 6: Final answer
    x = 200,971.29

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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.