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Finding the Fourth Proportional to 368,579.84, 552,842.75 and 143,897.72

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Solution

The fourth proportional to 368,579.84, 552,842.75 and 143,897.72 is: 215,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,579.84 : 552,842.75 = 143,897.72 : x
  2. Step 2: Convert to fraction form
    368,579.84/552,842.75 = 143,897.72/x
  3. Step 3: Cross multiply
    368,579.84x = 552,842.75 × 143,897.72
  4. Step 4: Simplify right side
    368,579.84x = 79,552,808,839.06
  5. Step 5: Solve for x
    x = 79,552,808,839.06/368,579.84
  6. Step 6: Final answer
    x = 215,836.03

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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.