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Finding the Fourth Proportional to 111,482.83, 153,822.14 and 66,175.92

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Solution

The fourth proportional to 111,482.83, 153,822.14 and 66,175.92 is: 91,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,482.83 : 153,822.14 = 66,175.92 : x
  2. Step 2: Convert to fraction form
    111,482.83/153,822.14 = 66,175.92/x
  3. Step 3: Cross multiply
    111,482.83x = 153,822.14 × 66,175.92
  4. Step 4: Simplify right side
    111,482.83x = 10,179,321,548.15
  5. Step 5: Solve for x
    x = 10,179,321,548.15/111,482.83
  6. Step 6: Final answer
    x = 91,308.42

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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.