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Finding the Fourth Proportional to 98,316, 135,687.60 and 55,880.91

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Solution

The fourth proportional to 98,316, 135,687.60 and 55,880.91 is: 77,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,316 : 135,687.60 = 55,880.91 : x
  2. Step 2: Convert to fraction form
    98,316/135,687.60 = 55,880.91/x
  3. Step 3: Cross multiply
    98,316x = 135,687.60 × 55,880.91
  4. Step 4: Simplify right side
    98,316x = 7,582,346,563.72
  5. Step 5: Solve for x
    x = 7,582,346,563.72/98,316
  6. Step 6: Final answer
    x = 77,122.20

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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.