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Finding the Fourth Proportional to 111,599.40, 154,033.74 and 63,880.32

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Solution

The fourth proportional to 111,599.40, 154,033.74 and 63,880.32 is: 88,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,599.40 : 154,033.74 = 63,880.32 : x
  2. Step 2: Convert to fraction form
    111,599.40/154,033.74 = 63,880.32/x
  3. Step 3: Cross multiply
    111,599.40x = 154,033.74 × 63,880.32
  4. Step 4: Simplify right side
    111,599.40x = 9,839,724,602.00
  5. Step 5: Solve for x
    x = 9,839,724,602.00/111,599.40
  6. Step 6: Final answer
    x = 88,170.05

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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.