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Finding the Fourth Proportional to 73,125.60, 109,688.40 and 33,759.60

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Solution

The fourth proportional to 73,125.60, 109,688.40 and 33,759.60 is: 50,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,125.60 : 109,688.40 = 33,759.60 : x
  2. Step 2: Convert to fraction form
    73,125.60/109,688.40 = 33,759.60/x
  3. Step 3: Cross multiply
    73,125.60x = 109,688.40 × 33,759.60
  4. Step 4: Simplify right side
    73,125.60x = 3,703,036,508.64
  5. Step 5: Solve for x
    x = 3,703,036,508.64/73,125.60
  6. Step 6: Final answer
    x = 50,639.40

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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.