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Finding the Fourth Proportional to 104,608.90, 156,825.51 and 72,925.84

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Solution

The fourth proportional to 104,608.90, 156,825.51 and 72,925.84 is: 109,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,608.90 : 156,825.51 = 72,925.84 : x
  2. Step 2: Convert to fraction form
    104,608.90/156,825.51 = 72,925.84/x
  3. Step 3: Cross multiply
    104,608.90x = 156,825.51 × 72,925.84
  4. Step 4: Simplify right side
    104,608.90x = 11,436,632,050.18
  5. Step 5: Solve for x
    x = 11,436,632,050.18/104,608.90
  6. Step 6: Final answer
    x = 109,327.52

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1.5x scale

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.