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Finding the Fourth Proportional to 111,284.75, 153,626.20 and 63,528.89

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Solution

The fourth proportional to 111,284.75, 153,626.20 and 63,528.89 is: 87,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,284.75 : 153,626.20 = 63,528.89 : x
  2. Step 2: Convert to fraction form
    111,284.75/153,626.20 = 63,528.89/x
  3. Step 3: Cross multiply
    111,284.75x = 153,626.20 × 63,528.89
  4. Step 4: Simplify right side
    111,284.75x = 9,759,701,033.96
  5. Step 5: Solve for x
    x = 9,759,701,033.96/111,284.75
  6. Step 6: Final answer
    x = 87,700.25

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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.