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Finding the Fourth Proportional to 111,829.52, 154,373.16 and 79,943.12

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Solution

The fourth proportional to 111,829.52, 154,373.16 and 79,943.12 is: 110,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,829.52 : 154,373.16 = 79,943.12 : x
  2. Step 2: Convert to fraction form
    111,829.52/154,373.16 = 79,943.12/x
  3. Step 3: Cross multiply
    111,829.52x = 154,373.16 × 79,943.12
  4. Step 4: Simplify right side
    111,829.52x = 12,341,072,054.66
  5. Step 5: Solve for x
    x = 12,341,072,054.66/111,829.52
  6. Step 6: Final answer
    x = 110,356.12

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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.