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Finding the Fourth Proportional to 113,262.83, 156,303.30 and 62,278.84

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Solution

The fourth proportional to 113,262.83, 156,303.30 and 62,278.84 is: 85,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,262.83 : 156,303.30 = 62,278.84 : x
  2. Step 2: Convert to fraction form
    113,262.83/156,303.30 = 62,278.84/x
  3. Step 3: Cross multiply
    113,262.83x = 156,303.30 × 62,278.84
  4. Step 4: Simplify right side
    113,262.83x = 9,734,387,456.21
  5. Step 5: Solve for x
    x = 9,734,387,456.21/113,262.83
  6. Step 6: Final answer
    x = 85,945.12

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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.