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Finding the Fourth Proportional to 113,273, 156,316.92 and 62,972

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Solution

The fourth proportional to 113,273, 156,316.92 and 62,972 is: 86,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,273 : 156,316.92 = 62,972 : x
  2. Step 2: Convert to fraction form
    113,273/156,316.92 = 62,972/x
  3. Step 3: Cross multiply
    113,273x = 156,316.92 × 62,972
  4. Step 4: Simplify right side
    113,273x = 9,843,589,086.24
  5. Step 5: Solve for x
    x = 9,843,589,086.24/113,273
  6. Step 6: Final answer
    x = 86,901.46

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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.