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Finding the Fourth Proportional to 358,692.48, 538,001.28 and 159,016.32

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Solution

The fourth proportional to 358,692.48, 538,001.28 and 159,016.32 is: 238,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,692.48 : 538,001.28 = 159,016.32 : x
  2. Step 2: Convert to fraction form
    358,692.48/538,001.28 = 159,016.32/x
  3. Step 3: Cross multiply
    358,692.48x = 538,001.28 × 159,016.32
  4. Step 4: Simplify right side
    358,692.48x = 85,550,983,700.89
  5. Step 5: Solve for x
    x = 85,550,983,700.89/358,692.48
  6. Step 6: Final answer
    x = 238,507.88

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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.