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Finding the Fourth Proportional to 73,261.60, 109,892.40 and 47,892.40

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Solution

The fourth proportional to 73,261.60, 109,892.40 and 47,892.40 is: 71,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,261.60 : 109,892.40 = 47,892.40 : x
  2. Step 2: Convert to fraction form
    73,261.60/109,892.40 = 47,892.40/x
  3. Step 3: Cross multiply
    73,261.60x = 109,892.40 × 47,892.40
  4. Step 4: Simplify right side
    73,261.60x = 5,263,010,777.76
  5. Step 5: Solve for x
    x = 5,263,010,777.76/73,261.60
  6. Step 6: Final answer
    x = 71,838.60

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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.