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Finding the Fourth Proportional to 111,368.04, 153,687.42 and 61,067.04

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Solution

The fourth proportional to 111,368.04, 153,687.42 and 61,067.04 is: 84,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,368.04 : 153,687.42 = 61,067.04 : x
  2. Step 2: Convert to fraction form
    111,368.04/153,687.42 = 61,067.04/x
  3. Step 3: Cross multiply
    111,368.04x = 153,687.42 × 61,067.04
  4. Step 4: Simplify right side
    111,368.04x = 9,385,235,824.64
  5. Step 5: Solve for x
    x = 9,385,235,824.64/111,368.04
  6. Step 6: Final answer
    x = 84,272.25

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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.