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Finding the Fourth Proportional to 366,948.64, 550,423.56 and 100,712.80

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Solution

The fourth proportional to 366,948.64, 550,423.56 and 100,712.80 is: 151,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,948.64 : 550,423.56 = 100,712.80 : x
  2. Step 2: Convert to fraction form
    366,948.64/550,423.56 = 100,712.80/x
  3. Step 3: Cross multiply
    366,948.64x = 550,423.56 × 100,712.80
  4. Step 4: Simplify right side
    366,948.64x = 55,434,697,913.57
  5. Step 5: Solve for x
    x = 55,434,697,913.57/366,948.64
  6. Step 6: Final answer
    x = 151,069.36

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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.