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Finding the Fourth Proportional to 113,535, 156,678.30 and 63,234

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Solution

The fourth proportional to 113,535, 156,678.30 and 63,234 is: 87,262.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,535 : 156,678.30 = 63,234 : x
  2. Step 2: Convert to fraction form
    113,535/156,678.30 = 63,234/x
  3. Step 3: Cross multiply
    113,535x = 156,678.30 × 63,234
  4. Step 4: Simplify right side
    113,535x = 9,907,395,622.20
  5. Step 5: Solve for x
    x = 9,907,395,622.20/113,535
  6. Step 6: Final answer
    x = 87,262.92

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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.