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Finding the Fourth Proportional to 104,436.30, 156,654.45 and 64,973.10

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Solution

The fourth proportional to 104,436.30, 156,654.45 and 64,973.10 is: 97,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,436.30 : 156,654.45 = 64,973.10 : x
  2. Step 2: Convert to fraction form
    104,436.30/156,654.45 = 64,973.10/x
  3. Step 3: Cross multiply
    104,436.30x = 156,654.45 × 64,973.10
  4. Step 4: Simplify right side
    104,436.30x = 10,178,325,245.30
  5. Step 5: Solve for x
    x = 10,178,325,245.30/104,436.30
  6. Step 6: Final answer
    x = 97,459.65

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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.