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Finding the Fourth Proportional to 104,446.60, 156,669.90 and 83,710.60

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Solution

The fourth proportional to 104,446.60, 156,669.90 and 83,710.60 is: 125,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,446.60 : 156,669.90 = 83,710.60 : x
  2. Step 2: Convert to fraction form
    104,446.60/156,669.90 = 83,710.60/x
  3. Step 3: Cross multiply
    104,446.60x = 156,669.90 × 83,710.60
  4. Step 4: Simplify right side
    104,446.60x = 13,114,931,330.94
  5. Step 5: Solve for x
    x = 13,114,931,330.94/104,446.60
  6. Step 6: Final answer
    x = 125,565.90

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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.