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Finding the Fourth Proportional to 104,774.76, 156,730.14 and 67,277.16

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Solution

The fourth proportional to 104,774.76, 156,730.14 and 67,277.16 is: 100,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,774.76 : 156,730.14 = 67,277.16 : x
  2. Step 2: Convert to fraction form
    104,774.76/156,730.14 = 67,277.16/x
  3. Step 3: Cross multiply
    104,774.76x = 156,730.14 × 67,277.16
  4. Step 4: Simplify right side
    104,774.76x = 10,544,358,705.60
  5. Step 5: Solve for x
    x = 10,544,358,705.60/104,774.76
  6. Step 6: Final answer
    x = 100,638.35

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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.