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Finding the Fourth Proportional to 351,856.44, 527,742.52 and 99,155.88

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Solution

The fourth proportional to 351,856.44, 527,742.52 and 99,155.88 is: 148,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,856.44 : 527,742.52 = 99,155.88 : x
  2. Step 2: Convert to fraction form
    351,856.44/527,742.52 = 99,155.88/x
  3. Step 3: Cross multiply
    351,856.44x = 527,742.52 × 99,155.88
  4. Step 4: Simplify right side
    351,856.44x = 52,328,773,984.02
  5. Step 5: Solve for x
    x = 52,328,773,984.02/351,856.44
  6. Step 6: Final answer
    x = 148,721.94

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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.