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Finding the Fourth Proportional to 104,459.30, 156,775.35 and 48,385.70

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Solution

The fourth proportional to 104,459.30, 156,775.35 and 48,385.70 is: 72,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,459.30 : 156,775.35 = 48,385.70 : x
  2. Step 2: Convert to fraction form
    104,459.30/156,775.35 = 48,385.70/x
  3. Step 3: Cross multiply
    104,459.30x = 156,775.35 × 48,385.70
  4. Step 4: Simplify right side
    104,459.30x = 7,585,685,052.50
  5. Step 5: Solve for x
    x = 7,585,685,052.50/104,459.30
  6. Step 6: Final answer
    x = 72,618.57

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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.