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Finding the Fourth Proportional to 108,598.40, 162,905.70 and 38,468.60

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Solution

The fourth proportional to 108,598.40, 162,905.70 and 38,468.60 is: 57,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,598.40 : 162,905.70 = 38,468.60 : x
  2. Step 2: Convert to fraction form
    108,598.40/162,905.70 = 38,468.60/x
  3. Step 3: Cross multiply
    108,598.40x = 162,905.70 × 38,468.60
  4. Step 4: Simplify right side
    108,598.40x = 6,266,754,211.02
  5. Step 5: Solve for x
    x = 6,266,754,211.02/108,598.40
  6. Step 6: Final answer
    x = 57,705.77

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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.