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Finding the Fourth Proportional to 110,528.40, 152,520.08 and 65,208.32

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Solution

The fourth proportional to 110,528.40, 152,520.08 and 65,208.32 is: 89,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,528.40 : 152,520.08 = 65,208.32 : x
  2. Step 2: Convert to fraction form
    110,528.40/152,520.08 = 65,208.32/x
  3. Step 3: Cross multiply
    110,528.40x = 152,520.08 × 65,208.32
  4. Step 4: Simplify right side
    110,528.40x = 9,945,578,183.07
  5. Step 5: Solve for x
    x = 9,945,578,183.07/110,528.40
  6. Step 6: Final answer
    x = 89,982.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.