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Finding the Fourth Proportional to 402,133.84, 554,637.16 and 273,171.76

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Solution

The fourth proportional to 402,133.84, 554,637.16 and 273,171.76 is: 376,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,133.84 : 554,637.16 = 273,171.76 : x
  2. Step 2: Convert to fraction form
    402,133.84/554,637.16 = 273,171.76/x
  3. Step 3: Cross multiply
    402,133.84x = 554,637.16 × 273,171.76
  4. Step 4: Simplify right side
    402,133.84x = 151,511,209,158.60
  5. Step 5: Solve for x
    x = 151,511,209,158.60/402,133.84
  6. Step 6: Final answer
    x = 376,768.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.