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Finding the Fourth Proportional to 101,038.07, 151,568.45 and 82,476.11

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Solution

The fourth proportional to 101,038.07, 151,568.45 and 82,476.11 is: 123,723.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,038.07 : 151,568.45 = 82,476.11 : x
  2. Step 2: Convert to fraction form
    101,038.07/151,568.45 = 82,476.11/x
  3. Step 3: Cross multiply
    101,038.07x = 151,568.45 × 82,476.11
  4. Step 4: Simplify right side
    101,038.07x = 12,500,774,984.51
  5. Step 5: Solve for x
    x = 12,500,774,984.51/101,038.07
  6. Step 6: Final answer
    x = 123,723.42

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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.