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Finding the Fourth Proportional to 438,441.81, 657,692.42 and 154,097.79

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Solution

The fourth proportional to 438,441.81, 657,692.42 and 154,097.79 is: 231,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,441.81 : 657,692.42 = 154,097.79 : x
  2. Step 2: Convert to fraction form
    438,441.81/657,692.42 = 154,097.79/x
  3. Step 3: Cross multiply
    438,441.81x = 657,692.42 × 154,097.79
  4. Step 4: Simplify right side
    438,441.81x = 101,348,947,651.26
  5. Step 5: Solve for x
    x = 101,348,947,651.26/438,441.81
  6. Step 6: Final answer
    x = 231,157.12

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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.