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Finding the Fourth Proportional to 111,544.66, 153,887.73 and 63,772.34

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Solution

The fourth proportional to 111,544.66, 153,887.73 and 63,772.34 is: 87,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,544.66 : 153,887.73 = 63,772.34 : x
  2. Step 2: Convert to fraction form
    111,544.66/153,887.73 = 63,772.34/x
  3. Step 3: Cross multiply
    111,544.66x = 153,887.73 × 63,772.34
  4. Step 4: Simplify right side
    111,544.66x = 9,813,780,639.39
  5. Step 5: Solve for x
    x = 9,813,780,639.39/111,544.66
  6. Step 6: Final answer
    x = 87,980.73

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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.