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Finding the Fourth Proportional to 98,602.35, 147,796.88 and 39,372.90

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Solution

The fourth proportional to 98,602.35, 147,796.88 and 39,372.90 is: 59,016.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,602.35 : 147,796.88 = 39,372.90 : x
  2. Step 2: Convert to fraction form
    98,602.35/147,796.88 = 39,372.90/x
  3. Step 3: Cross multiply
    98,602.35x = 147,796.88 × 39,372.90
  4. Step 4: Simplify right side
    98,602.35x = 5,819,191,579.69
  5. Step 5: Solve for x
    x = 5,819,191,579.69/98,602.35
  6. Step 6: Final answer
    x = 59,016.76

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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.