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Finding the Fourth Proportional to 118,497.60, 163,382.40 and 111,628.80

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Solution

The fourth proportional to 118,497.60, 163,382.40 and 111,628.80 is: 153,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,497.60 : 163,382.40 = 111,628.80 : x
  2. Step 2: Convert to fraction form
    118,497.60/163,382.40 = 111,628.80/x
  3. Step 3: Cross multiply
    118,497.60x = 163,382.40 × 111,628.80
  4. Step 4: Simplify right side
    118,497.60x = 18,238,181,253.12
  5. Step 5: Solve for x
    x = 18,238,181,253.12/118,497.60
  6. Step 6: Final answer
    x = 153,911.82

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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.