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Finding the Fourth Proportional to 368,968.97, 553,100.50 and 144,254.72

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Solution

The fourth proportional to 368,968.97, 553,100.50 and 144,254.72 is: 216,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,968.97 : 553,100.50 = 144,254.72 : x
  2. Step 2: Convert to fraction form
    368,968.97/553,100.50 = 144,254.72/x
  3. Step 3: Cross multiply
    368,968.97x = 553,100.50 × 144,254.72
  4. Step 4: Simplify right side
    368,968.97x = 79,787,359,322.43
  5. Step 5: Solve for x
    x = 79,787,359,322.43/368,968.97
  6. Step 6: Final answer
    x = 216,244.09

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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.