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Finding the Fourth Proportional to 113,474, 170,288.76 and 39,602

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Solution

The fourth proportional to 113,474, 170,288.76 and 39,602 is: 59,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,474 : 170,288.76 = 39,602 : x
  2. Step 2: Convert to fraction form
    113,474/170,288.76 = 39,602/x
  3. Step 3: Cross multiply
    113,474x = 170,288.76 × 39,602
  4. Step 4: Simplify right side
    113,474x = 6,743,775,473.52
  5. Step 5: Solve for x
    x = 6,743,775,473.52/113,474
  6. Step 6: Final answer
    x = 59,430.14

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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.