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Finding the Fourth Proportional to 109,015.80, 163,529.10 and 56,527.80

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Solution

The fourth proportional to 109,015.80, 163,529.10 and 56,527.80 is: 84,794.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,015.80 : 163,529.10 = 56,527.80 : x
  2. Step 2: Convert to fraction form
    109,015.80/163,529.10 = 56,527.80/x
  3. Step 3: Cross multiply
    109,015.80x = 163,529.10 × 56,527.80
  4. Step 4: Simplify right side
    109,015.80x = 9,243,940,258.98
  5. Step 5: Solve for x
    x = 9,243,940,258.98/109,015.80
  6. Step 6: Final answer
    x = 84,794.50

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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.