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Finding the Fourth Proportional to 369,696.40, 554,544.66 and 89,213.66

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Solution

The fourth proportional to 369,696.40, 554,544.66 and 89,213.66 is: 133,820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,696.40 : 554,544.66 = 89,213.66 : x
  2. Step 2: Convert to fraction form
    369,696.40/554,544.66 = 89,213.66/x
  3. Step 3: Cross multiply
    369,696.40x = 554,544.66 × 89,213.66
  4. Step 4: Simplify right side
    369,696.40x = 49,472,958,752.06
  5. Step 5: Solve for x
    x = 49,472,958,752.06/369,696.40
  6. Step 6: Final answer
    x = 133,820.50

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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.