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Finding the Fourth Proportional to 369,961.54, 554,942.58 and 89,479.06

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Solution

The fourth proportional to 369,961.54, 554,942.58 and 89,479.06 is: 134,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,961.54 : 554,942.58 = 89,479.06 : x
  2. Step 2: Convert to fraction form
    369,961.54/554,942.58 = 89,479.06/x
  3. Step 3: Cross multiply
    369,961.54x = 554,942.58 × 89,479.06
  4. Step 4: Simplify right side
    369,961.54x = 49,655,740,412.37
  5. Step 5: Solve for x
    x = 49,655,740,412.37/369,961.54
  6. Step 6: Final answer
    x = 134,218.66

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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.