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Finding the Fourth Proportional to 104,607.50, 156,822.80 and 45,398.66

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Solution

The fourth proportional to 104,607.50, 156,822.80 and 45,398.66 is: 68,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,607.50 : 156,822.80 = 45,398.66 : x
  2. Step 2: Convert to fraction form
    104,607.50/156,822.80 = 45,398.66/x
  3. Step 3: Cross multiply
    104,607.50x = 156,822.80 × 45,398.66
  4. Step 4: Simplify right side
    104,607.50x = 7,119,544,977.45
  5. Step 5: Solve for x
    x = 7,119,544,977.45/104,607.50
  6. Step 6: Final answer
    x = 68,059.60

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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.