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Finding the Fourth Proportional to 98,188.54, 135,505.44 and 57,925.84

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Solution

The fourth proportional to 98,188.54, 135,505.44 and 57,925.84 is: 79,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,188.54 : 135,505.44 = 57,925.84 : x
  2. Step 2: Convert to fraction form
    98,188.54/135,505.44 = 57,925.84/x
  3. Step 3: Cross multiply
    98,188.54x = 135,505.44 × 57,925.84
  4. Step 4: Simplify right side
    98,188.54x = 7,849,266,436.57
  5. Step 5: Solve for x
    x = 7,849,266,436.57/98,188.54
  6. Step 6: Final answer
    x = 79,940.76

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1.5x scale

Why These Related Problems?

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