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Finding the Fourth Proportional to 104,365.85, 156,420.46 and 48,127.88

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Solution

The fourth proportional to 104,365.85, 156,420.46 and 48,127.88 is: 72,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,365.85 : 156,420.46 = 48,127.88 : x
  2. Step 2: Convert to fraction form
    104,365.85/156,420.46 = 48,127.88/x
  3. Step 3: Cross multiply
    104,365.85x = 156,420.46 × 48,127.88
  4. Step 4: Simplify right side
    104,365.85x = 7,528,185,399.16
  5. Step 5: Solve for x
    x = 7,528,185,399.16/104,365.85
  6. Step 6: Final answer
    x = 72,132.65

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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.