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Finding the Fourth Proportional to 111,354.75, 153,673.20 and 61,053.75

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Solution

The fourth proportional to 111,354.75, 153,673.20 and 61,053.75 is: 84,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,354.75 : 153,673.20 = 61,053.75 : x
  2. Step 2: Convert to fraction form
    111,354.75/153,673.20 = 61,053.75/x
  3. Step 3: Cross multiply
    111,354.75x = 153,673.20 × 61,053.75
  4. Step 4: Simplify right side
    111,354.75x = 9,382,325,134.50
  5. Step 5: Solve for x
    x = 9,382,325,134.50/111,354.75
  6. Step 6: Final answer
    x = 84,256.17

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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.