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Finding the Fourth Proportional to 111,081.84, 153,293.40 and 60,785.52

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Solution

The fourth proportional to 111,081.84, 153,293.40 and 60,785.52 is: 83,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,081.84 : 153,293.40 = 60,785.52 : x
  2. Step 2: Convert to fraction form
    111,081.84/153,293.40 = 60,785.52/x
  3. Step 3: Cross multiply
    111,081.84x = 153,293.40 × 60,785.52
  4. Step 4: Simplify right side
    111,081.84x = 9,318,019,031.57
  5. Step 5: Solve for x
    x = 9,318,019,031.57/111,081.84
  6. Step 6: Final answer
    x = 83,884.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.