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Finding the Fourth Proportional to 111,495.12, 153,863.04 and 61,193.04

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Solution

The fourth proportional to 111,495.12, 153,863.04 and 61,193.04 is: 84,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,495.12 : 153,863.04 = 61,193.04 : x
  2. Step 2: Convert to fraction form
    111,495.12/153,863.04 = 61,193.04/x
  3. Step 3: Cross multiply
    111,495.12x = 153,863.04 × 61,193.04
  4. Step 4: Simplify right side
    111,495.12x = 9,415,347,161.24
  5. Step 5: Solve for x
    x = 9,415,347,161.24/111,495.12
  6. Step 6: Final answer
    x = 84,446.27

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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.