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Finding the Fourth Proportional to 362,102.72, 543,154.09 and 193,111.07

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Solution

The fourth proportional to 362,102.72, 543,154.09 and 193,111.07 is: 289,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,102.72 : 543,154.09 = 193,111.07 : x
  2. Step 2: Convert to fraction form
    362,102.72/543,154.09 = 193,111.07/x
  3. Step 3: Cross multiply
    362,102.72x = 543,154.09 × 193,111.07
  4. Step 4: Simplify right side
    362,102.72x = 104,889,064,296.23
  5. Step 5: Solve for x
    x = 104,889,064,296.23/362,102.72
  6. Step 6: Final answer
    x = 289,666.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.