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Finding the Fourth Proportional to 111,706.48, 154,151.04 and 61,405.12

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Solution

The fourth proportional to 111,706.48, 154,151.04 and 61,405.12 is: 84,736.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,706.48 : 154,151.04 = 61,405.12 : x
  2. Step 2: Convert to fraction form
    111,706.48/154,151.04 = 61,405.12/x
  3. Step 3: Cross multiply
    111,706.48x = 154,151.04 × 61,405.12
  4. Step 4: Simplify right side
    111,706.48x = 9,465,663,109.32
  5. Step 5: Solve for x
    x = 9,465,663,109.32/111,706.48
  6. Step 6: Final answer
    x = 84,736.92

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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.