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Finding the Fourth Proportional to 272,522.40, 376,078.14 and 151,661.63

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Solution

The fourth proportional to 272,522.40, 376,078.14 and 151,661.63 is: 209,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,522.40 : 376,078.14 = 151,661.63 : x
  2. Step 2: Convert to fraction form
    272,522.40/376,078.14 = 151,661.63/x
  3. Step 3: Cross multiply
    272,522.40x = 376,078.14 × 151,661.63
  4. Step 4: Simplify right side
    272,522.40x = 57,036,621,839.38
  5. Step 5: Solve for x
    x = 57,036,621,839.38/272,522.40
  6. Step 6: Final answer
    x = 209,291.50

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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.