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Finding the Fourth Proportional to 240,859.30, 361,307.64 and 72,366.46

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Solution

The fourth proportional to 240,859.30, 361,307.64 and 72,366.46 is: 108,555.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,859.30 : 361,307.64 = 72,366.46 : x
  2. Step 2: Convert to fraction form
    240,859.30/361,307.64 = 72,366.46/x
  3. Step 3: Cross multiply
    240,859.30x = 361,307.64 × 72,366.46
  4. Step 4: Simplify right side
    240,859.30x = 26,146,554,877.75
  5. Step 5: Solve for x
    x = 26,146,554,877.75/240,859.30
  6. Step 6: Final answer
    x = 108,555.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.